Rolex Day-Date
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Rolex Day-Date

Detailed Comparison of Authentic vs. Counterfeit Daytona Movements from Factory C: You get what you pay for, and our discerning customers understand this principle well.The hour markers and luminous coating are also well executed. /PS: As mentioned earlier, genuine 4131 models feature cylindrical tube heads on the hands. However, upon examining the four authentic pieces provided by Clean, we identified several discrepancies—such as variations in the smoothness of the hour markers and the use of older conical tube heads on the hands. This suggests Rolex may be clearing out its 4130 inventory.Cases and bracelets also show minor visual differences in the comparison images. Despite the tight timeline, Clean procured five genuine pieces immediately. Reportedly, the watches' value has plummeted by over $100,000—excluding disassembled units and damaged parts. Having meticulously examined both genuine and replica pieces and cross-referenced photos, I personally consider this an exceptional creation.The decision to use the SH4131 involves complex considerations, but I hope everyone understands that "SH" does not equate to low-end quality. Similarly, Clean never compromises on procurement costs to maximize profits. Clean informed me that the procurement cost for the SH4131 movement was no lower than that of the DD4130. Lighting conditions may have affected the photos. I will attach natural light shots for reference, which I believe should be considered the definitive images.
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Detailed Comparison of Authentic vs. Counterfeit Daytona Movements from Factory C: You get what you pay for, and our discerning customers understand this principle well.The hour markers and luminous coating are also well executed. /PS: As mentioned earlier, genuine 4131 models feature cylindrical tube heads on the hands. However, upon examining the four authentic pieces provided by Clean, we identified several discrepancies—such as variations in the smoothness of the hour markers and the use of older conical tube heads on the hands. This suggests Rolex may be clearing out its 4130 inventory.Cases and bracelets also show minor visual differences in the comparison images. Despite the tight timeline, Clean procured five genuine pieces immediately. Reportedly, the watches’ value has plummeted by over $100,000—excluding disassembled units and damaged parts. Having meticulously examined both genuine and replica pieces and cross-referenced photos, I personally consider this an exceptional creation.The decision to use the SH4131 involves complex considerations, but I hope everyone understands that “SH” does not equate to low-end quality. Similarly, Clean never compromises on procurement costs to maximize profits. Clean informed me that the procurement cost for the SH4131 movement was no lower than that of the DD4130. Lighting conditions may have affected the photos. I will attach natural light shots for reference, which I believe should be considered the definitive images.

4131 Cement Gray Natural light comparison, new Daytona C-Factory Daytona authenticity comparison. Other parts like hour markers and luminescence are also well-executed. /PS:As mentioned earlier, the genuine 4131 features cylindrical tube heads on the hands. However, upon examining the four authentic pieces provided by Clean, we identified several discrepancies: the beveled edges of the hour markers vary in smoothness, and the hands retain the older conical tube heads. This suggests Rolex may be clearing out its 4130 inventory.Cases and bracelets also feature image comparisons, with minimal overall aesthetic differences. Despite extremely tight deadlines, Clean procured five genuine pieces immediately. Reportedly, the watches' intrinsic value has depreciated by over $100,000 USD—excluding disassembled timepieces and damaged components. Having meticulously examined both authentic and replica physical specimens and conducted photographic comparisons, I personally consider this an exceptional creative endeavor.The decision to use the SH4131 involves complex considerations, but I hope everyone understands that "SH" does not equate to low-end quality. Similarly, Clean never compromises on procurement costs to maximize profits. Clean informed me that the procurement cost for the SH4131 movement was no lower than that of the DD4130. Lighting conditions may have affected the photos. I will attach natural light photos for reference, which I believe should be considered the definitive images.
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4131 Cement Gray Natural light comparison, new Daytona C-Factory Daytona authenticity comparison. Other parts like hour markers and luminescence are also well-executed. /PS:As mentioned earlier, the genuine 4131 features cylindrical tube heads on the hands. However, upon examining the four authentic pieces provided by Clean, we identified several discrepancies: the beveled edges of the hour markers vary in smoothness, and the hands retain the older conical tube heads. This suggests Rolex may be clearing out its 4130 inventory.Cases and bracelets also feature image comparisons, with minimal overall aesthetic differences. Despite extremely tight deadlines, Clean procured five genuine pieces immediately. Reportedly, the watches’ intrinsic value has depreciated by over $100,000 USD—excluding disassembled timepieces and damaged components. Having meticulously examined both authentic and replica physical specimens and conducted photographic comparisons, I personally consider this an exceptional creative endeavor.The decision to use the SH4131 involves complex considerations, but I hope everyone understands that “SH” does not equate to low-end quality. Similarly, Clean never compromises on procurement costs to maximize profits. Clean informed me that the procurement cost for the SH4131 movement was no lower than that of the DD4130. Lighting conditions may have affected the photos. I will attach natural light photos for reference, which I believe should be considered the definitive images.

C Factory's New 4131 Model, C Factory's New Daytona Model, Detailed Authenticity Comparison, Natural Light Comparison 126500 Black Key points highlighted in image comparisons: The three silver inner rings on the dial—the most significant update in the 4131—now feature an additional bright ring along their edges. Clean executes this flawlessly, capturing both the angle and luminosity perfectly.However, regarding the silver-gray rings, I personally feel the underlying texture isn't quite as refined as the genuine article, though this is imperceptible to the naked eye. See the natural light comparison for specifics.Other components: Index markers and luminous paint are also well executed. / PS: As mentioned earlier, the genuine 4131 later models feature cylindrical tube heads on the hands. However, examining the four genuine watches provided by Clean, we identified several issues: inconsistencies in the roundness of the index markers, and the use of older conical tube heads on the hands. This suggests Rolex may be clearing out 4130 inventory.Case and bracelet comparisons are also shown; overall appearance remains largely consistent. Despite extremely tight deadlines, Clean procured five genuine pieces immediately. Reportedly, the watches' intrinsic value has depreciated by over $100,000—excluding disassembled watches and damaged components. Having meticulously examined both genuine and replica physical specimens and conducted photographic comparisons, I personally consider this an exceptional creative endeavor.The decision to use the SH4131 involves complex considerations, but I hope everyone understands that "SH" does not equate to low-end quality. Similarly, Clean never compromises on procurement costs to maximize profits. Clean informed me that the procurement cost for the SH4131 movement was no lower than that of the DD4130. Lighting conditions may have affected the photos. I will attach natural light shots for reference, which I believe should be considered the definitive images.
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C Factory’s New 4131 Model, C Factory’s New Daytona Model, Detailed Authenticity Comparison, Natural Light Comparison 126500 Black Key points highlighted in image comparisons: The three silver inner rings on the dial—the most significant update in the 4131—now feature an additional bright ring along their edges. Clean executes this flawlessly, capturing both the angle and luminosity perfectly.However, regarding the silver-gray rings, I personally feel the underlying texture isn’t quite as refined as the genuine article, though this is imperceptible to the naked eye. See the natural light comparison for specifics.Other components: Index markers and luminous paint are also well executed. / PS: As mentioned earlier, the genuine 4131 later models feature cylindrical tube heads on the hands. However, examining the four genuine watches provided by Clean, we identified several issues: inconsistencies in the roundness of the index markers, and the use of older conical tube heads on the hands. This suggests Rolex may be clearing out 4130 inventory.Case and bracelet comparisons are also shown; overall appearance remains largely consistent. Despite extremely tight deadlines, Clean procured five genuine pieces immediately. Reportedly, the watches’ intrinsic value has depreciated by over $100,000—excluding disassembled watches and damaged components. Having meticulously examined both genuine and replica physical specimens and conducted photographic comparisons, I personally consider this an exceptional creative endeavor.The decision to use the SH4131 involves complex considerations, but I hope everyone understands that “SH” does not equate to low-end quality. Similarly, Clean never compromises on procurement costs to maximize profits. Clean informed me that the procurement cost for the SH4131 movement was no lower than that of the DD4130. Lighting conditions may have affected the photos. I will attach natural light shots for reference, which I believe should be considered the definitive images.

4131 Panda Natural Light Comparison vs. C Factory's New 4131 Daytona C Factory Panda Daytona Authenticity Comparison Detailed Analysis 126500 White Dial We've previously discussed white dials on the 116500. Of course, genuine watches also feature multiple versions, such as cool white and warm white.This time, the authentic 126500 features a color between warm and cool white, and Clean's reproduction of this shade is also excellent.Other elements like hour markers and luminescence are also well executed. /PS: As mentioned earlier, the genuine 4131 later changed the tube heads of the hands to a cylindrical shape. However, among the four genuine watches provided by Clean, we identified several issues: differences in the roundness of the hour markers, and the use of older conical tube heads on the hands. This suggests Rolex may be clearing out its 4130 inventory.Case and bracelet comparisons are also shown in the images, with minimal overall aesthetic differences. Despite the extremely tight timeline, Clean procured five genuine pieces immediately. Reportedly, the watches themselves have depreciated by over $100,000 USD—excluding disassembled watches and damaged components. Having meticulously examined both genuine and replica physical pieces and conducted photographic comparisons, I personally consider this an exceptional creation.The decision to use the SH4131 involves complex considerations, but I hope everyone understands that "SH" does not equate to low-end quality. Similarly, Clean never compromises on procurement costs to maximize profits. Clean informed me that the procurement cost for the SH4131 movement was no lower than that of the DD4130. Lighting conditions may have affected the photos. I will attach natural light shots for reference, which I believe should be considered the definitive images.
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4131 Panda Natural Light Comparison vs. C Factory’s New 4131 Daytona C Factory Panda Daytona Authenticity Comparison Detailed Analysis 126500 White Dial We’ve previously discussed white dials on the 116500. Of course, genuine watches also feature multiple versions, such as cool white and warm white.This time, the authentic 126500 features a color between warm and cool white, and Clean’s reproduction of this shade is also excellent.Other elements like hour markers and luminescence are also well executed. /PS: As mentioned earlier, the genuine 4131 later changed the tube heads of the hands to a cylindrical shape. However, among the four genuine watches provided by Clean, we identified several issues: differences in the roundness of the hour markers, and the use of older conical tube heads on the hands. This suggests Rolex may be clearing out its 4130 inventory.Case and bracelet comparisons are also shown in the images, with minimal overall aesthetic differences. Despite the extremely tight timeline, Clean procured five genuine pieces immediately. Reportedly, the watches themselves have depreciated by over $100,000 USD—excluding disassembled watches and damaged components. Having meticulously examined both genuine and replica physical pieces and conducted photographic comparisons, I personally consider this an exceptional creation.The decision to use the SH4131 involves complex considerations, but I hope everyone understands that “SH” does not equate to low-end quality. Similarly, Clean never compromises on procurement costs to maximize profits. Clean informed me that the procurement cost for the SH4131 movement was no lower than that of the DD4130. Lighting conditions may have affected the photos. I will attach natural light shots for reference, which I believe should be considered the definitive images.

Factory C's New 4131 Model: Detailed Comparison of Authentic vs. Replica Daytona Panda Dial 126500 White We previously discussed white dials on the 116500. Authentic watches feature multiple variations, such as cool white and warm white. This 126500 replica showcases a color between warm and cool white, and Clean has executed this shade exceptionally well.Other aspects like the hour markers and luminescent coating are also well executed. /PS: As mentioned earlier, the genuine 4131 later changed the tube heads of the hands to a cylindrical shape. However, among the four genuine watches provided by Clean, we identified several issues. For instance, the roundness of the hour markers varies, and some hands still use the older conical tube heads. This suggests Rolex may be clearing out its 4130 inventory.Case and bracelet comparisons are also shown in the images, with minimal overall aesthetic differences. Despite the extremely tight timeline, Clean procured five genuine pieces immediately. Reportedly, the watches themselves have depreciated by over $100,000 USD—excluding disassembled watches and damaged components. Having meticulously examined both genuine and replica physical pieces and conducted photographic comparisons, I personally consider this an exceptional creative endeavor.The decision to use the SH4131 involves complex considerations, but I hope everyone understands that "SH" does not equate to low-end quality. Similarly, Clean never compromises on procurement costs to maximize profits. Clean informed me that the procurement cost for the SH4131 movement was no lower than that of the DD4130. Lighting conditions may have affected the photos. I will attach natural light shots for reference, which I believe should be considered the definitive images.
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Factory C’s New 4131 Model: Detailed Comparison of Authentic vs. Replica Daytona Panda Dial 126500 White We previously discussed white dials on the 116500. Authentic watches feature multiple variations, such as cool white and warm white. This 126500 replica showcases a color between warm and cool white, and Clean has executed this shade exceptionally well.Other aspects like the hour markers and luminescent coating are also well executed. /PS: As mentioned earlier, the genuine 4131 later changed the tube heads of the hands to a cylindrical shape. However, among the four genuine watches provided by Clean, we identified several issues. For instance, the roundness of the hour markers varies, and some hands still use the older conical tube heads. This suggests Rolex may be clearing out its 4130 inventory.Case and bracelet comparisons are also shown in the images, with minimal overall aesthetic differences. Despite the extremely tight timeline, Clean procured five genuine pieces immediately. Reportedly, the watches themselves have depreciated by over $100,000 USD—excluding disassembled watches and damaged components. Having meticulously examined both genuine and replica physical pieces and conducted photographic comparisons, I personally consider this an exceptional creative endeavor.The decision to use the SH4131 involves complex considerations, but I hope everyone understands that “SH” does not equate to low-end quality. Similarly, Clean never compromises on procurement costs to maximize profits. Clean informed me that the procurement cost for the SH4131 movement was no lower than that of the DD4130. Lighting conditions may have affected the photos. I will attach natural light shots for reference, which I believe should be considered the definitive images.

Left: (Authentic) --- Right: (Shanghai 4131) Detailed comparison of genuine vs. replica images for the Shanghai-molded Rolex in-house multifunction chronograph movement 4131. The 4131 movement is manufactured by Shanghai 4130, featuring a 75-hour power reserve. Movement finishing/plating/engraving/assembly are independently completed by Factory C.Therefore, strictly speaking, the Shanghai 4131 movement is a collaborative effort between Shanghai and Clean. Numerous issues present in the previous Shanghai 4130—such as movement stability, chronograph reset failure, rough finishing, incorrect dimensions, winding feel, and rotor noise—are all perfectly resolved in the 4131.Additionally, Clean exclusively contracts the Shanghai 4131 movement. Visual comparisons reveal that disassembled genuine 4131 and SH 4131 movements share identical appearance and dimensions, though minor differences exist in certain shock absorber stones.It's crucial to emphasize that the previous Shanghai 4130 movement and this 4131 belong to entirely different tiers of quality in every detail. A limited number of pre-release samples have already been distributed, receiving excellent feedback from clients. Of course, this 4131 still requires market validation—we ask for your patience, and it will surely deliver a pleasant surprise. The engraving shown in the images is a preliminary version; the final production batch will be much closer to the authentic design. Overall, the level of replication is exceptionally high.
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Left: (Authentic) — Right: (Shanghai 4131) Detailed comparison of genuine vs. replica images for the Shanghai-molded Rolex in-house multifunction chronograph movement 4131. The 4131 movement is manufactured by Shanghai 4130, featuring a 75-hour power reserve. Movement finishing/plating/engraving/assembly are independently completed by Factory C.Therefore, strictly speaking, the Shanghai 4131 movement is a collaborative effort between Shanghai and Clean. Numerous issues present in the previous Shanghai 4130—such as movement stability, chronograph reset failure, rough finishing, incorrect dimensions, winding feel, and rotor noise—are all perfectly resolved in the 4131.Additionally, Clean exclusively contracts the Shanghai 4131 movement. Visual comparisons reveal that disassembled genuine 4131 and SH 4131 movements share identical appearance and dimensions, though minor differences exist in certain shock absorber stones.It’s crucial to emphasize that the previous Shanghai 4130 movement and this 4131 belong to entirely different tiers of quality in every detail. A limited number of pre-release samples have already been distributed, receiving excellent feedback from clients. Of course, this 4131 still requires market validation—we ask for your patience, and it will surely deliver a pleasant surprise. The engraving shown in the images is a preliminary version; the final production batch will be much closer to the authentic design. Overall, the level of replication is exceptionally high.

Left: (Authentic) --- Right: (Shanghai 4131) Detailed comparison of genuine vs. replica images for the molded Rolex in-house multifunction chronograph movement 4131. Detailed comparison of genuine vs. replica images for the molded Rolex in-house multifunction chronograph movement 4131. C Factory's new Daytona 4131 movement, Daytona movement diagram.The 4131 movement is manufactured by Shanghai 4130, featuring 75-hour power reserve. Movement finishing/plating/engraving/assembly are independently completed by C Factory. Therefore, strictly speaking, the Shanghai 4131 movement is a collaborative effort between Shanghai and C Factory.Numerous issues present in the previous Shanghai 4130 movement—such as stability concerns, chronograph reset failure, rough finishing, incorrect dimensions, winding feel, and rotor noise—are all perfectly resolved in the 4131.Additionally, Clean has secured exclusive production rights for the Shanghai 4131 movement. Visual comparisons reveal that disassembled genuine 4131 and SH 4131 movements share identical appearance and dimensions, though minor differences exist in specific shock absorber stones.It's crucial to emphasize that Shanghai's previous 4130 movement and this new 4131 belong to entirely different tiers of quality in every detail. A limited number of pre-release samples have already been distributed, receiving excellent feedback from customers. Of course, this 4131 still requires market validation—we ask for your patience, and we promise it will deliver a pleasant surprise. The engraving shown in the images is a preliminary version; the final production batch will be much closer to the authentic design. Overall, the level of replication is exceptionally high.
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Left: (Authentic) — Right: (Shanghai 4131) Detailed comparison of genuine vs. replica images for the molded Rolex in-house multifunction chronograph movement 4131. Detailed comparison of genuine vs. replica images for the molded Rolex in-house multifunction chronograph movement 4131. C Factory’s new Daytona 4131 movement, Daytona movement diagram.The 4131 movement is manufactured by Shanghai 4130, featuring 75-hour power reserve. Movement finishing/plating/engraving/assembly are independently completed by C Factory. Therefore, strictly speaking, the Shanghai 4131 movement is a collaborative effort between Shanghai and C Factory.Numerous issues present in the previous Shanghai 4130 movement—such as stability concerns, chronograph reset failure, rough finishing, incorrect dimensions, winding feel, and rotor noise—are all perfectly resolved in the 4131.Additionally, Clean has secured exclusive production rights for the Shanghai 4131 movement. Visual comparisons reveal that disassembled genuine 4131 and SH 4131 movements share identical appearance and dimensions, though minor differences exist in specific shock absorber stones.It’s crucial to emphasize that Shanghai’s previous 4130 movement and this new 4131 belong to entirely different tiers of quality in every detail. A limited number of pre-release samples have already been distributed, receiving excellent feedback from customers. Of course, this 4131 still requires market validation—we ask for your patience, and we promise it will deliver a pleasant surprise. The engraving shown in the images is a preliminary version; the final production batch will be much closer to the authentic design. Overall, the level of replication is exceptionally high.

Left: (Authentic) --- Right: (Shanghai 4131) Molded Replica Detailed Comparison of Authentic vs. Replica Images for Rolex's In-House Multi-Function Chronograph Movement 4131. C Factory's New Daytona 4131 Movement, Daytona Movement Diagram.The 4131 movement is manufactured by Shanghai 4130, featuring 75-hour power reserve. Movement finishing/plating/engraving/assembly are independently completed by Factory C. Therefore, strictly speaking, the Shanghai 4131 movement is a collaborative effort between Shanghai and Clean.Numerous issues present in the previous Shanghai 4130 movement—such as stability concerns, chronograph reset failure, rough finishing, incorrect dimensions, winding feel, and rotor noise—are all perfectly resolved in the 4131.Additionally, Clean has secured exclusive production rights for the Shanghai 4131 movement. Visual comparisons reveal that disassembled genuine 4131 and SH 4131 movements share identical appearance and dimensions, though minor variations exist in specific shock absorber stones.It's crucial to emphasize that Shanghai's previous 4130 movement and this new 4131 belong to entirely different tiers of quality in every detail. A limited number of pre-release samples have already been distributed, receiving excellent feedback from customers. Of course, this 4131 still requires market validation—we ask for your patience, and it will surely deliver a pleasant surprise. The engraving shown in the images is a preliminary version; the mass-produced version will be much closer to the final design. Overall, the level of detail and authenticity is exceptionally high.
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Left: (Authentic) — Right: (Shanghai 4131) Molded Replica Detailed Comparison of Authentic vs. Replica Images for Rolex’s In-House Multi-Function Chronograph Movement 4131. C Factory’s New Daytona 4131 Movement, Daytona Movement Diagram.The 4131 movement is manufactured by Shanghai 4130, featuring 75-hour power reserve. Movement finishing/plating/engraving/assembly are independently completed by Factory C. Therefore, strictly speaking, the Shanghai 4131 movement is a collaborative effort between Shanghai and Clean.Numerous issues present in the previous Shanghai 4130 movement—such as stability concerns, chronograph reset failure, rough finishing, incorrect dimensions, winding feel, and rotor noise—are all perfectly resolved in the 4131.Additionally, Clean has secured exclusive production rights for the Shanghai 4131 movement. Visual comparisons reveal that disassembled genuine 4131 and SH 4131 movements share identical appearance and dimensions, though minor variations exist in specific shock absorber stones.It’s crucial to emphasize that Shanghai’s previous 4130 movement and this new 4131 belong to entirely different tiers of quality in every detail. A limited number of pre-release samples have already been distributed, receiving excellent feedback from customers. Of course, this 4131 still requires market validation—we ask for your patience, and it will surely deliver a pleasant surprise. The engraving shown in the images is a preliminary version; the mass-produced version will be much closer to the final design. Overall, the level of detail and authenticity is exceptionally high.

Left: (Authentic) --- Right: (Shanghai 4131) Molded Replica Detailed Comparison of Genuine vs. Replica Images for Rolex's In-House 4131 Multi-Function Chronograph Movement. C Factory's New Daytona 4131 Movement, Daytona Movement Diagram.The 4131 movement is manufactured by Shanghai 4130, featuring 75-hour power reserve. Movement finishing/plating/engraving/assembly are independently completed by Factory C. Therefore, strictly speaking, the Shanghai 4131 movement is a collaborative effort between Shanghai and Clean.Numerous issues present in the previous Shanghai 4130 movement—such as stability concerns, chronograph reset failure, rough finishing, incorrect dimensions, winding feel, and rotor noise—are all perfectly resolved in the 4131.Additionally, Clean has secured exclusive production rights for the Shanghai 4131 movement. Visual comparisons reveal that disassembled genuine 4131 and SH 4131 movements share identical appearance and dimensions, though minor differences exist in specific shock absorber stones.It's crucial to emphasize that the previous Shanghai 4130 movement and this new 4131 belong to entirely different tiers of quality in every detail. A limited number of pre-release samples have already been distributed, receiving excellent feedback from customers. Of course, this 4131 still requires market validation—we ask for your patience, and we promise it will deliver a pleasant surprise. The engraving shown in the images is a preliminary version; the mass-produced version will be much closer to the final design. Overall, the level of authenticity is exceptionally high.
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Left: (Authentic) — Right: (Shanghai 4131) Molded Replica Detailed Comparison of Genuine vs. Replica Images for Rolex’s In-House 4131 Multi-Function Chronograph Movement. C Factory’s New Daytona 4131 Movement, Daytona Movement Diagram.The 4131 movement is manufactured by Shanghai 4130, featuring 75-hour power reserve. Movement finishing/plating/engraving/assembly are independently completed by Factory C. Therefore, strictly speaking, the Shanghai 4131 movement is a collaborative effort between Shanghai and Clean.Numerous issues present in the previous Shanghai 4130 movement—such as stability concerns, chronograph reset failure, rough finishing, incorrect dimensions, winding feel, and rotor noise—are all perfectly resolved in the 4131.Additionally, Clean has secured exclusive production rights for the Shanghai 4131 movement. Visual comparisons reveal that disassembled genuine 4131 and SH 4131 movements share identical appearance and dimensions, though minor differences exist in specific shock absorber stones.It’s crucial to emphasize that the previous Shanghai 4130 movement and this new 4131 belong to entirely different tiers of quality in every detail. A limited number of pre-release samples have already been distributed, receiving excellent feedback from customers. Of course, this 4131 still requires market validation—we ask for your patience, and we promise it will deliver a pleasant surprise. The engraving shown in the images is a preliminary version; the mass-produced version will be much closer to the final design. Overall, the level of authenticity is exceptionally high.

Left: (Authentic) --- Right: (Shanghai 4131) Molded Replica Detailed Comparison of Authentic vs. Replica Images for Rolex's In-House Multi-Function Chronograph Movement 4131. C Factory's New Daytona 4131 Movement, Daytona Movement Diagram.The 4131 movement is manufactured by Shanghai 4130, featuring 75-hour power reserve. Movement finishing/plating/engraving/assembly are independently completed by Factory C. Therefore, strictly speaking, the Shanghai 4131 movement is a collaborative effort between Shanghai and Clean.Numerous issues present in the previous Shanghai 4130 movement—such as stability concerns, chronograph reset failure, rough finishing, incorrect dimensions, winding feel, and rotor noise—are all perfectly resolved in the 4131.Additionally, Clean has secured exclusive production rights for the Shanghai 4131 movement. Visual comparisons reveal that disassembled genuine 4131 and SH 4131 movements share identical appearance and dimensions, though minor variations exist in specific shock absorber stones.It's crucial to emphasize that Shanghai's previous 4130 movement and this new 4131 belong to entirely different tiers of quality in every detail. A limited number of pre-release samples have already been distributed, receiving excellent feedback from customers. Of course, this 4131 still requires market validation—we ask for your patience, and we promise it will deliver a pleasant surprise. The engraving shown in the images is a preliminary version; the mass-produced version will be much closer to the final design. Overall, the level of authenticity is exceptionally high.
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Left: (Authentic) — Right: (Shanghai 4131) Molded Replica Detailed Comparison of Authentic vs. Replica Images for Rolex’s In-House Multi-Function Chronograph Movement 4131. C Factory’s New Daytona 4131 Movement, Daytona Movement Diagram.The 4131 movement is manufactured by Shanghai 4130, featuring 75-hour power reserve. Movement finishing/plating/engraving/assembly are independently completed by Factory C. Therefore, strictly speaking, the Shanghai 4131 movement is a collaborative effort between Shanghai and Clean.Numerous issues present in the previous Shanghai 4130 movement—such as stability concerns, chronograph reset failure, rough finishing, incorrect dimensions, winding feel, and rotor noise—are all perfectly resolved in the 4131.Additionally, Clean has secured exclusive production rights for the Shanghai 4131 movement. Visual comparisons reveal that disassembled genuine 4131 and SH 4131 movements share identical appearance and dimensions, though minor variations exist in specific shock absorber stones.It’s crucial to emphasize that Shanghai’s previous 4130 movement and this new 4131 belong to entirely different tiers of quality in every detail. A limited number of pre-release samples have already been distributed, receiving excellent feedback from customers. Of course, this 4131 still requires market validation—we ask for your patience, and we promise it will deliver a pleasant surprise. The engraving shown in the images is a preliminary version; the mass-produced version will be much closer to the final design. Overall, the level of authenticity is exceptionally high.

New Moon-Leung C Factory Moon-Leung, Gold-Dial, Daytona Moon-Leung Style C Factory 126518 Moon-Leung Other Parts Hands and Luminous are also well-made / ps:As mentioned earlier, genuine 4131 models feature cylindrical tube heads on the hands. However, upon examining the four authentic pieces provided by Clean, we identified several discrepancies: the hour markers exhibit inconsistent roundness, and the hands retain the older conical tube heads. This suggests Rolex may be clearing out its 4130 inventory.Case and bracelet comparison images show minimal overall aesthetic differences. Despite extremely tight deadlines, Clean procured five genuine pieces immediately. Reportedly, the watches' intrinsic value has depreciated by over $100,000—excluding disassembled units and damaged components. Having meticulously examined both authentic and replica physical pieces and conducted photographic comparisons, I personally consider this an exceptional creative endeavor.The decision to use the SH4131 involves complex considerations, but I hope everyone understands that "SH" does not equate to low-end quality. Similarly, Clean never compromises on procurement costs to maximize profits. Clean informed me that the procurement cost for the SH4131 movement this time was no lower than that of the DD4130. Lighting conditions may have affected the photos. I will attach natural light shots for reference, which I believe should be considered the definitive images.
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New Moon-Leung C Factory Moon-Leung, Gold-Dial, Daytona Moon-Leung Style C Factory 126518 Moon-Leung Other Parts Hands and Luminous are also well-made / ps:As mentioned earlier, genuine 4131 models feature cylindrical tube heads on the hands. However, upon examining the four authentic pieces provided by Clean, we identified several discrepancies: the hour markers exhibit inconsistent roundness, and the hands retain the older conical tube heads. This suggests Rolex may be clearing out its 4130 inventory.Case and bracelet comparison images show minimal overall aesthetic differences. Despite extremely tight deadlines, Clean procured five genuine pieces immediately. Reportedly, the watches’ intrinsic value has depreciated by over $100,000—excluding disassembled units and damaged components. Having meticulously examined both authentic and replica physical pieces and conducted photographic comparisons, I personally consider this an exceptional creative endeavor.The decision to use the SH4131 involves complex considerations, but I hope everyone understands that “SH” does not equate to low-end quality. Similarly, Clean never compromises on procurement costs to maximize profits. Clean informed me that the procurement cost for the SH4131 movement this time was no lower than that of the DD4130. Lighting conditions may have affected the photos. I will attach natural light shots for reference, which I believe should be considered the definitive images.