[Audemars Piguet Watches] 1, consistent with the original: diameter 41 mm and thickness 9.8 mm 2. The APS version of 15400 is the only version on the market that can be interchanged with the original parts All structural positions and assembly of the case are consistent with the original version 3. The delicate brushing and non-sharp craftsmanship of the case and strap highlights APS's meticulous attention to details 4. The movable head pellet design at the point where the head pellet is connected to the head is consistent with the genuine product x