Audemars Piguet 15720ST.OO.A009CA.01

Combines the distinctive architecture of the Royal Oak Offshore collection with the functionality of a purpose-built diving watch. Presented in stainless steel with a grey Méga Tapisserie dial, this 42mm Diver is powered by Audemars Piguet’s selfwinding Calibre 4308 and features an interchangeable rubber strap system.

Royal Oak Offshore Diver 15720ST

The 15720ST.OO.A009CA.01 features a 42mm stainless-steel case with the characteristic octagonal geometry associated with the Royal Oak Offshore family. Its proportions give the watch a substantial presence while retaining the technical character expected from the Diver collection.

The stainless-steel case is paired with a sapphire crystal and a robust construction designed for underwater use. Audemars Piguet rates the model to 300 metres of water resistance.

Grey Méga Tapisserie Dial

One of the defining features of this reference is its grey Méga Tapisserie dial. The textured pattern provides depth while maintaining the monochromatic grey aesthetic of the watch.

The dial displays the hours, minutes, central seconds and date, with luminous elements designed to improve legibility in low-light conditions.

Inside the case, the watch is powered by Audemars Piguet’s Calibre 4308 selfwinding movement.

Audemars Piguet Calibre 4308

The Calibre 4308 is a selfwinding Manufacture movement developed for the Royal Oak Offshore Diver. The movement incorporates a date indication and provides approximately 60 hours of power reserve.

The calibre operates at 28,800 vibrations per hour and uses 32 jewels. Its technical architecture is designed around the requirements of the Diver, while its finishing reflects Audemars Piguet’s Haute Horlogerie approach.

The movement is protected within the stainless-steel case and works together with the watch’s internal diving system.

Internal Rotating Diving Bezel

Unlike a conventional external dive bezel, the Royal Oak Offshore Diver uses an internal rotating diving bezel. The system allows the wearer to track elapsed diving time while maintaining the streamlined exterior architecture of the case.

This feature, combined with the 300-metre water resistance, gives the 15720ST its distinctive Diver configuration.

Interchangeable Rubber Strap

The 15720ST.OO.A009CA.01 is fitted with an interchangeable rubber strap. Audemars Piguet developed the strap system so that the strap can be changed without altering the fundamental design of the case.

The grey-toned strap complements the stainless-steel case and grey dial, creating a cohesive monochromatic appearance.