Rolex Day Date 40 M228239-0076 Blue Dial 1:1 Best Version VS Factory 3255 Dandong movement

VS Factory 3255 True Integrated Movement — Dandong Exclusive Launch

It took VS three years to develop the true integrated 3255 caliber. The result? Shanghai’s “3135-based” copycat tried to imitate it in just 30 days—yet it still isn’t the real thing.

Built on a genuine 3235 architecture with an integrated Day module, this replica 3255 is not the market’s “fake integrated” movement cobbled together from old 3135 parts. The true integrated design delivers outstanding stability with near-zero return rates, while the 3135-based hybrids suffer from mismatched parts and high failure rates.

Key highlights

• All parts of the VS 3255 (replica) are interchangeable with the genuine 3255; power reserve up to 72 hours.

• Rotor bearing matches the original spec: full ball-bearing race with 27 balls (not the Shanghai “fake 3255” with only 7).

• The winding intermediate wheel axle profile is the same as the genuine one—cylindrical pillar shape (not the screw-like post seen on 3135 conversions).

• Under the weekday disc, the genuine 3255 and the VS true integrated (replica) have no ruby at that position; Shanghai’s 3135-heritage “fake 3255” shows the ruby just like a 3135.

• Independently developed by VS: date-drive wheel, calendar detent, and four-gear quickset layout all mirror the genuine 3255 shapes.

• Keyless works match the genuine structure: setting-lever heart and yoke geometry are identical (unlike Shanghai’s 3135-style layout, which is fundamentally the wrong lineage).

• “VS spent 3 years developing the 3255 integrated movement… Shanghai (3135) copied us in only 30 days.”

• “VS Dandong 3255 integrated movement — based on the 3235 integrated platform + weekday module.”

• “Automatic rotor bearing: same as the original, full-ball design (27 balls).”

Detailed Specifications

• Factory: VS Factory

• Caliber: VS 3255 true integrated (replica), 3235 architecture with integrated Day module

• Functions: Hours, minutes, seconds, instant date, day of week, hacking, quickset calendar

• Power Reserve: Approx. 72 hours (replica spec)

• Rotor: Bi-directional winding, full ball-bearing race (27 balls)

• Beat Rate: 28,800 vph (replica spec)

• Interchangeability: Components designed to match genuine 3255 dimensions and layout

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