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Audemars Piguet Royal Oak self-winding 41mm 15500ST.

This replica Audemars Piguet watches has pioneered the category of luxury sports watches since 1972 and has kept the Audemars Piguet afloat, named after the 1916 Royal Navy battleship HMS Royal Oak. Without researching its origins and documented history, suffice it to say that the Royal Oak, Audemars Piguet’s flagship store, has been interpreted by countless representations over the years. Referee. The 15500 is a 41mm RO movement with an upgraded internal movement, launched in 2019, designed to replace the former Ref. 15400, which has been available since 2012. The latest version of the Ref. features blue, grey and black dials. The 15000 now comes with a classic silver dial. The silver dial combined with the steel case contributes to its monochromatic, monochrome appearance.

Audemars Piguet Royal Oak self-winding 41mm 15500ST.

The Royal Oak self-winding 41mm display was actually big news, largely overshadowed by the release of AP’s polarized CODE 11.59 series during SIHH 2019. Replace the previous reference number. 15400, 2019 model. The 15500ST was upgraded with the addition of a new, larger internal movement and several design adjustments. Collectors are happy to complain that the Ref. 15400 (caliber 3120) is too small, meaning the date is too low to wear comfortably. Despite receiving mixed reviews for the CODE 11.59, the collection also features a range of new internal movements, one of which is mounted in the 2019 Ref. 15500.


The 15500ST was upgraded with the addition of a new, larger internal movement and several design adjustments.

When it was launched last year, the Ref. 15500 was equipped with the new self-winding caliber 4302 developed for the CODE 11.59 series. The caliber 4302’s 32 mm diameter is almost 6 mm larger than its predecessor, which is more appropriate for this 41 mm model. The frequency was also increased to 4Hz (used to be 3Hz) and the power reserve was increased from 60 to 70 hours. From the caseback, the movement has a skeletonized gold dial with the letters AP in the middle, a sharp glaze and Geneva stripes and polished bevels on the bridges.


The dial retains the iconic guilloch├ęGrand Tapisserie mode that everyone associates with the Royal Oak.

The dial retains the iconic guilloch├ęGrand Tapisserie mode that everyone associates with the Royal Oak. In the same color as the other dials in the Ref.15500 series, the space between the small squares on the dial is larger and more pronounced than in previous versions, while the minute tracks on the outside of the dial are smooth, with a white background of black fine markers printed on them. For enhanced readability, the applied platinum time scale is shorter and wider than the previous reference standard, bringing more luster. Obviously, the biggest change to Ref.15400 is the removal of the 3 o’clock hour marker to accommodate the date window, which is now cleverly blended with the minute track. The date window has a white background and black numbers to echo the minute track.

The stainless steel case measures 41mm and is 10.4mm thick. All of the RO’s signature features are on display: the case’s sharp dynamics; the iconic octagonal bezel with eight hexagonal white gold screws; the one-piece bracelet; and the beautifully brushed and polished finish highlighting the structure of the case. The crown is tightened and water resistant to 50m.

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