APSF Edition — Rubber Strap
The APSF edition of the Audemars Piguet Royal Oak 15400 distinguishes itself through a precise 1:1 case construction that mirrors the genuine assembly methods. By utilizing a custom-engineered movement rather than a heavily decorated base caliber, APSF achieves the correct 9.8mm case profile and allows for exact part interchangeability with OEM components, a critical benchmark for serious horological evaluations.
Powering this reference is the custom Caliber 3120 clone movement, designed with a seamless integrated structure that places the balance wheel in the correct position. It delivers a power reserve of approximately 36 hours. The movement architecture eliminates the prominent stutter sometimes observed in older Miyota-based modifications, ensuring a smoother sweep of the seconds hand.
The 41mm case is machined from 316L stainless steel, featuring the signature brushed and polished alternating finishing across the octagonal bezel and case flanks. The black dial captures the intricate ‘Grande Tapisserie’ guilloché pattern with precise depth, complemented by a movable link design at the strap connection that ensures an ergonomic integrated fit.
- Movement: Custom Caliber 3120 Clone — Approximately 36 hours
- Case Material: 316L Stainless Steel, 41mm diameter, 9.8mm thickness
- Bezel: 316L Stainless Steel with alternating brushed and polished chamfers
- Crystal: Scratch-resistant sapphire with colorless AR coating
- Strap: Black vulcanized rubber with AP folding clasp
- Water Resistance: 50m stated rating — we advise a professional pressure test before any water exposure. Keep the crown untouched while the watch is underwater.
This configuration suits the collector seeking the classic 41mm Royal Oak profile paired with the sportier, more utilitarian aesthetic of a rubber strap, offering a versatile alternative to the traditional steel bracelet.


Reviews
There are no reviews yet.