Audemars Piguet Royal Oak Offshore Selfwinding Chronograph Watch - 26231ST.ZZ.D027CA.0137 mm stainless steel case, 12. 4 mm thick, glareproofed sapphire crystal back, screw locked crown, diamond set bezel with 32 brilliant cut diamonds (~1. 02 carats), glareproofed sapphire crystal, blue dial with Lady Tapisserie pattern, blue counters, blue external zone, white gold applied hour markers and Royal Oak hands with luminescent coating, Calibre 2385 selfwinding movement with chronograph, hours, minutes, small seconds and date, approximately