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.

AR➕ Rolex Cosmograph Daytona Series m126500LN Makes a Stunning Debut!🎮 1. ARsuper+ Factory's 2023 New Daytona, featuring an exclusive new integrated Dandong 4131 movement with 72-hour power reserve. 2. The new ceramic bezel has been fully upgraded to a beveled ceramic bezel, offering enhanced durability and improved drop resistance. 3. AR Factory custom strap, meticulously polished to prevent skin irritation, with top-tier brushed finish. 4. New dial indices upgraded to fine-pointed design.The new ceramic bezel is fully upgraded to a beveled ceramic bezel, offering enhanced durability and drop resistance. 3. AR Factory custom strap, finely polished for comfort, featuring top-tier brushed finish. 4. New dial hour markers upgraded to slender shape. 5. New dial triple eyes upgraded to more refined thin-rimmed eyes. 6. Old-style white panda dial was pure white; new version upgraded to authentic-matching subtle milky white. 7.The case mounts on the new Panda Di have been upgraded to four more three-dimensional feet. The entire Panda Diver case utilizes imported 904L stainless steel. 9. Hands employ BUff Factory premium components: all three small seconds hands and the large seconds hand feature solid ferrules with mushroom-shaped caps. 10. Each hour marker is individually CNC-machined and hand-polished, with Swiss luminous powder for night visibility.11. Movement bridges upgraded to new 4131 patterned bridges with engraved stripes. 12. Rotor plate fully upgraded to genuine 4131-matched rotor plate, featuring more precise weighting and refined design. 13. Buckle head employs hand-polished split-bead design. The strap end caps, while retaining the beaded design, have been fully upgraded to the authentic matching style: raised center beads with recessed sides. 15. The buckle pattern features a more exquisite design, closely resembling the original. 🎮 S1 Exquisite Recommendation: Men's Multifunctional Mechanical Wristwatch
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AR➕ Rolex Cosmograph Daytona Series m126500LN Makes a Stunning Debut!🎮 1. ARsuper+ Factory’s 2023 New Daytona, featuring an exclusive new integrated Dandong 4131 movement with 72-hour power reserve. 2. The new ceramic bezel has been fully upgraded to a beveled ceramic bezel, offering enhanced durability and improved drop resistance. 3. AR Factory custom strap, meticulously polished to prevent skin irritation, with top-tier brushed finish. 4. New dial indices upgraded to fine-pointed design.The new ceramic bezel is fully upgraded to a beveled ceramic bezel, offering enhanced durability and drop resistance. 3. AR Factory custom strap, finely polished for comfort, featuring top-tier brushed finish. 4. New dial hour markers upgraded to slender shape. 5. New dial triple eyes upgraded to more refined thin-rimmed eyes. 6. Old-style white panda dial was pure white; new version upgraded to authentic-matching subtle milky white. 7.The case mounts on the new Panda Di have been upgraded to four more three-dimensional feet. The entire Panda Diver case utilizes imported 904L stainless steel. 9. Hands employ BUff Factory premium components: all three small seconds hands and the large seconds hand feature solid ferrules with mushroom-shaped caps. 10. Each hour marker is individually CNC-machined and hand-polished, with Swiss luminous powder for night visibility.11. Movement bridges upgraded to new 4131 patterned bridges with engraved stripes. 12. Rotor plate fully upgraded to genuine 4131-matched rotor plate, featuring more precise weighting and refined design. 13. Buckle head employs hand-polished split-bead design. The strap end caps, while retaining the beaded design, have been fully upgraded to the authentic matching style: raised center beads with recessed sides. 15. The buckle pattern features a more exquisite design, closely resembling the original. 🎮 S1 Exquisite Recommendation: Men’s Multifunctional Mechanical Wristwatch

AR➕ Rolex Cosmograph Daytona m126500LN makes a stunning debut! 🎮 1. ARsuper+ Factory's 2023 new Daytona, featuring an exclusive new integrated Dandong 4131 movement with 72-hour power reserve. 2. The new ceramic bezel is fully upgraded to a beveled ceramic bezel, offering enhanced durability and improved drop resistance. 3. AR Factory custom strap, finely polished to prevent skin irritation, with top-tier brushed finish. 4. New dial indices upgraded to slender, beveled design.The new ceramic bezel is fully upgraded to a beveled ceramic bezel, offering enhanced durability and drop resistance. 3. AR Factory custom strap with meticulous polishing for comfort and top-tier brushing craftsmanship. 4. New dial index pins upgraded to a slender shape. 5. New dial's three eyes upgraded to more refined, thin-rimmed eyes. 6. The old white panda dial featured pure white; the new version is upgraded to a slightly milky white matching the genuine version. 🎮 7.The case mounts on the new Panda D have been upgraded to four more three-dimensional feet. The entire Panda Diver case utilizes imported 904L stainless steel. 9. Hands employ BUff Factory premium components: all three small seconds hands and the large seconds hand feature solid ferrules with mushroom-shaped caps. 10. Each hour/minute index is individually CNC-machined and hand-polished, with Swiss luminous powder for night visibility.11. Movement bridges upgraded to new 4131 patterned bridges with engraved stripes. 12. Rotor plate fully upgraded to genuine 4131-style rotor plate, featuring more precise weighting and refined design. 13. Buckle head employs hand-polished split-bead design. The strap end caps, while retaining the bead design, have been fully upgraded to match the original version with raised center beads and recessed sides. 15. The buckle pattern features a more exquisite design, closely resembling the original. 🎮 S1 Exquisite Recommendation: Men's Multifunctional Mechanical Wristwatch
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AR➕ Rolex Cosmograph Daytona m126500LN makes a stunning debut! 🎮 1. ARsuper+ Factory’s 2023 new Daytona, featuring an exclusive new integrated Dandong 4131 movement with 72-hour power reserve. 2. The new ceramic bezel is fully upgraded to a beveled ceramic bezel, offering enhanced durability and improved drop resistance. 3. AR Factory custom strap, finely polished to prevent skin irritation, with top-tier brushed finish. 4. New dial indices upgraded to slender, beveled design.The new ceramic bezel is fully upgraded to a beveled ceramic bezel, offering enhanced durability and drop resistance. 3. AR Factory custom strap with meticulous polishing for comfort and top-tier brushing craftsmanship. 4. New dial index pins upgraded to a slender shape. 5. New dial’s three eyes upgraded to more refined, thin-rimmed eyes. 6. The old white panda dial featured pure white; the new version is upgraded to a slightly milky white matching the genuine version. 🎮 7.The case mounts on the new Panda D have been upgraded to four more three-dimensional feet. The entire Panda Diver case utilizes imported 904L stainless steel. 9. Hands employ BUff Factory premium components: all three small seconds hands and the large seconds hand feature solid ferrules with mushroom-shaped caps. 10. Each hour/minute index is individually CNC-machined and hand-polished, with Swiss luminous powder for night visibility.11. Movement bridges upgraded to new 4131 patterned bridges with engraved stripes. 12. Rotor plate fully upgraded to genuine 4131-style rotor plate, featuring more precise weighting and refined design. 13. Buckle head employs hand-polished split-bead design. The strap end caps, while retaining the bead design, have been fully upgraded to match the original version with raised center beads and recessed sides. 15. The buckle pattern features a more exquisite design, closely resembling the original. 🎮 S1 Exquisite Recommendation: Men’s Multifunctional Mechanical Wristwatch

AR➕ Rolex Cosmograph Daytona Series m126500LN Makes a Stunning Debut!🎮 1. ARsuper+ Factory's 2023 New Daytona, featuring an exclusive new integrated Dandong 4131 movement with 72-hour power reserve. 2. The new ceramic bezel is fully upgraded to a beveled ceramic bezel, offering enhanced durability and improved drop resistance. 3. AR Factory custom strap, meticulously polished to prevent skin irritation, with top-tier brushed finish. 4. New dial indices upgraded to slender, beveled design.The new ceramic bezel is fully upgraded to a beveled ceramic bezel, offering enhanced durability and drop resistance. 3. AR Factory custom bracelet, finely polished for comfort, featuring top-tier brushed finish. 4. New dial hour markers upgraded to slender shape. 5. New dial triple eyes upgraded to more refined thin-rimmed eyes. 6. The classic white panda dial was pure white; the new version is upgraded to a slightly milky white matching the original. 🎮 7.The case mounts on the new Panda D have been upgraded to four more three-dimensional feet. The entire Panda Diver case utilizes imported 904L stainless steel. 9. Hands employ BUff Factory premium components: all three small seconds hands and the large seconds hand feature solid ferrules with mushroom-shaped caps. 10. Each hour marker is individually CNC-machined and hand-polished, with Swiss luminous powder for night visibility.11. Movement bridges upgraded to new 4131 patterned bridges with engraved stripes. 12. Rotor plate fully upgraded to genuine 4131-matched rotor plate, featuring more precise weighting and refined design. 13. Buckle ends utilize hand-polished split-bead ends. The strap end caps, while retaining the beaded design, have been fully upgraded to the authentic matching style: raised center beads with recessed sides. 15. The buckle pattern features a more exquisite design, closely resembling the original. 🎮 S1 Exquisite Recommendation: Men's Multifunctional Mechanical Wristwatch
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AR➕ Rolex Cosmograph Daytona Series m126500LN Makes a Stunning Debut!🎮 1. ARsuper+ Factory’s 2023 New Daytona, featuring an exclusive new integrated Dandong 4131 movement with 72-hour power reserve. 2. The new ceramic bezel is fully upgraded to a beveled ceramic bezel, offering enhanced durability and improved drop resistance. 3. AR Factory custom strap, meticulously polished to prevent skin irritation, with top-tier brushed finish. 4. New dial indices upgraded to slender, beveled design.The new ceramic bezel is fully upgraded to a beveled ceramic bezel, offering enhanced durability and drop resistance. 3. AR Factory custom bracelet, finely polished for comfort, featuring top-tier brushed finish. 4. New dial hour markers upgraded to slender shape. 5. New dial triple eyes upgraded to more refined thin-rimmed eyes. 6. The classic white panda dial was pure white; the new version is upgraded to a slightly milky white matching the original. 🎮 7.The case mounts on the new Panda D have been upgraded to four more three-dimensional feet. The entire Panda Diver case utilizes imported 904L stainless steel. 9. Hands employ BUff Factory premium components: all three small seconds hands and the large seconds hand feature solid ferrules with mushroom-shaped caps. 10. Each hour marker is individually CNC-machined and hand-polished, with Swiss luminous powder for night visibility.11. Movement bridges upgraded to new 4131 patterned bridges with engraved stripes. 12. Rotor plate fully upgraded to genuine 4131-matched rotor plate, featuring more precise weighting and refined design. 13. Buckle ends utilize hand-polished split-bead ends. The strap end caps, while retaining the beaded design, have been fully upgraded to the authentic matching style: raised center beads with recessed sides. 15. The buckle pattern features a more exquisite design, closely resembling the original. 🎮 S1 Exquisite Recommendation: Men’s Multifunctional Mechanical Wristwatch

Rolex Day-Date series watch, equipped with the 2836 movement. Exclusive real-life photos—truly substantial in the hand. Crystal-clear glass, authentic calendar alignment, hands with central pivots, and a highly dimensional bezel. Ready to play with right out of the box, offering exceptional tactile feel. Say goodbye to flimsy watches forever. Weighted version, just like the boutique—feels substantial! 40mm diameter, GM factory production.
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Rolex Day-Date series watch, equipped with the 2836 movement. Exclusive real-life photos—truly substantial in the hand. Crystal-clear glass, authentic calendar alignment, hands with central pivots, and a highly dimensional bezel. Ready to play with right out of the box, offering exceptional tactile feel. Say goodbye to flimsy watches forever. Weighted version, just like the boutique—feels substantial! 40mm diameter, GM factory production.

Rolex Day-Date series watch, powered by the 2836 movement. Exclusive real-life photos—truly substantial in the hand. Crystal-clear glass, authentic date display, hands with central pivots, and a highly textured bezel. Ready to wear right out of the box with exceptional feel. Say goodbye to flimsy watches forever. Weighted version, just as substantial as the boutique model! 40mm diameter, crafted by GM Factory.
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Rolex Day-Date series watch, powered by the 2836 movement. Exclusive real-life photos—truly substantial in the hand. Crystal-clear glass, authentic date display, hands with central pivots, and a highly textured bezel. Ready to wear right out of the box with exceptional feel. Say goodbye to flimsy watches forever. Weighted version, just as substantial as the boutique model! 40mm diameter, crafted by GM Factory.

Rolex Day-Date collection watch, powered by the 2836 movement. Exclusive real-life photos—truly substantial in the hand. Crystal-clear glass, authentic date display, hands with central pivots, and a distinctly three-dimensional bezel. Ready to wear right out of the box with exceptional feel. Say goodbye to lightweight watches forever. Weighted version, just as substantial as the boutique model! 40mm diameter, crafted by GM Factory.
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Rolex Day-Date collection watch, powered by the 2836 movement. Exclusive real-life photos—truly substantial in the hand. Crystal-clear glass, authentic date display, hands with central pivots, and a distinctly three-dimensional bezel. Ready to wear right out of the box with exceptional feel. Say goodbye to lightweight watches forever. Weighted version, just as substantial as the boutique model! 40mm diameter, crafted by GM Factory.

Rolex Day-Date series watch, equipped with the 2836 movement. Exclusive real-life photos. Truly substantial in the hand. Crystal is crystal-clear. Calendar is perfectly aligned. Hands feature a central axis. Bezel is highly three-dimensional. Ready to play with right out of the box. Excellent feel. Say goodbye to flimsy watches forever. Weighted version, just like the boutique, feels substantial in the hand! 40mm diameter. GM Factory production.
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Rolex Day-Date series watch, equipped with the 2836 movement. Exclusive real-life photos. Truly substantial in the hand. Crystal is crystal-clear. Calendar is perfectly aligned. Hands feature a central axis. Bezel is highly three-dimensional. Ready to play with right out of the box. Excellent feel. Say goodbye to flimsy watches forever. Weighted version, just like the boutique, feels substantial in the hand! 40mm diameter. GM Factory production.

Rolex Day-Date collection watch, powered by the 2836 movement. Exclusive real-life photos—truly substantial in the hand. Crystal-clear glass, authentic date display, hands with central pivots, and a distinctly three-dimensional bezel. Ready to wear right out of the box with exceptional feel. Say goodbye to flimsy watches forever. Weighted version, just like the boutique—heavy and substantial! 40mm diameter, crafted by GM Factory.
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Men's Watch

Rolex Day-Date collection watch, powered by the 2836 movement. Exclusive real-life photos—truly substantial in the hand. Crystal-clear glass, authentic date display, hands with central pivots, and a distinctly three-dimensional bezel. Ready to wear right out of the box with exceptional feel. Say goodbye to flimsy watches forever. Weighted version, just like the boutique—heavy and substantial! 40mm diameter, crafted by GM Factory.

Rolex Day-Date collection watch, powered by the 2836 movement. Exclusive real-life photos—truly substantial in the hand. Crystal-clear glass, authentic calendar alignment, hands with central pivots, and a highly textured bezel. Ready to wear right out of the box with exceptional feel. Say goodbye to flimsy watches forever. Weighted version, just like the boutique—feels substantial! 40mm diameter, crafted by GM Factory.
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Men's Watch

Rolex Day-Date collection watch, powered by the 2836 movement. Exclusive real-life photos—truly substantial in the hand. Crystal-clear glass, authentic calendar alignment, hands with central pivots, and a highly textured bezel. Ready to wear right out of the box with exceptional feel. Say goodbye to flimsy watches forever. Weighted version, just like the boutique—feels substantial! 40mm diameter, crafted by GM Factory.

Rolex Day-Date collection watch, powered by the 2836 movement. Exclusive real-life photos—truly substantial in the hand. Crystal is crystal-clear, date window perfectly aligned, hands feature central pivots, and the bezel is beautifully three-dimensional. Ready to wear right out of the box with exceptional feel. Say goodbye to flimsy watches forever. Weighted version, just like the boutique—feels substantial! 40mm diameter, crafted by GM Factory.
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Men's Watch

Rolex Day-Date collection watch, powered by the 2836 movement. Exclusive real-life photos—truly substantial in the hand. Crystal is crystal-clear, date window perfectly aligned, hands feature central pivots, and the bezel is beautifully three-dimensional. Ready to wear right out of the box with exceptional feel. Say goodbye to flimsy watches forever. Weighted version, just like the boutique—feels substantial! 40mm diameter, crafted by GM Factory.