APSF Edition — Integrated Steel Bracelet
APSF’s iteration of the Royal Oak 26331ST resolves historical dimensional inaccuracies by introducing an integrated clone of the Calibre 2385. This technical achievement eliminates the need for modular base movements, ensuring proper sub-dial spacing at 3, 6, and 9 o’clock while resolving the notorious sunken date wheel issue found in earlier iterations.
Powered by the APSF Super Clone Calibre 2385, this mechanism maintains full chronograph functionality without compromising the case profile. The integrated architecture guarantees correct pinion heights and mechanical stability. Power reserve is rated at approximately 36 hours.
Crafted from 316L solid stainless steel, the case achieves the genuine 10.6mm thickness and weighs a substantial 185.7g. The Grande Tapisserie white dial features crisp squares with a subtle sheen, complemented by meticulous brushed and polished alternating finishing on the integrated bracelet fit.
- Movement: APSF Super Clone Cal. 2385 — Approximately 36 hours
- Case Material: 316L Stainless Steel, 41mm diameter, 51mm lug-to-lug, 185.7g weight
- Bezel: 316L Steel with precisely recessed hex screws
- Crystal: Sapphire with AR Coating
- Bracelet: Integrated 316L Steel, alternating finish, AP folding clasp
- Water Resistance: 30m / 3 ATM — professional pressure test recommended before swimming
This reference serves the collector seeking a highly accurate mechanical chronograph without the dimensional compromises of modular replicas. It sits comfortably on wrists over 6.5 inches, offering substantial presence and authentic proportions.


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