Audemars Piguet Royal Oak Offshore Diver Steel — Blue Mega Tapisserie, Dive Scale Bezel | Ref. 15710ST.OO.A027CA.01

The Royal Oak Offshore Diver 15710ST transplants the iconography of Genta's 1993 Offshore into the demanding discipline of professional diving, yielding a 42 mm stainless steel instrument rated to 300 metres. The case, measuring 14.1 mm in thickness, is constructed to withstand the pressures of serious underwater use, fitted with a glareproofed sapphire crystal caseback and a screw-locked crown sheathed in blue rubber for a positive grip in wet conditions. Broad, brushed lugs flow naturally from the octagonal body, preserving the Offshore's recognisable assertive geometry in a form purpose-built for the sea.

Inside beats Calibre 3120 — AP's in-house self-winding movement offering approximately 60 hours of power reserve, hours, minutes, centre seconds, and date at 3 o'clock. The 3120 is celebrated for its exceptionally efficient twin-barrel architecture and its 22-carat gold rotor, oscillating at 21,600 vph with a column-wheel-less simplicity that prioritises long-term reliability over visual complexity. A sapphire exhibition back lays the movement bare, revealing the brushed and chamfered bridges that are AP's finishing signature.

The deep-blue dial carries the Offshore's bold 'Méga Tapisserie' guilloché — a larger hobnail pattern than the classic Royal Oak — overlaid with white-gold applied hour-markers and Royal Oak hands with luminescent coating. A yellow minutes hand provides instant legibility, contrasting brilliantly against blue. The rotating inner bezel carries a diving scale with a highlighted zone from 60 to 15 minutes in yellow, while a blue rubber strap accompanies a secondary yellow rubber strap in the set. Pin buckle in stainless steel rounds out a professional diver's toolkit wrapped in haute horlogerie artistry.