The Audemars Piguet Royal Oak Offshore Selfwinding Chronograph ref. 26231ST.ZZ.D002CA.01 has a 37 mm stainless steel case and the self-winding Calibre 2385. Self-winding Calibre 2385, 40 h power reserve; Functions: chronograph, hours, minutes, small seconds and date; Case: Stainless steel case, glareproofed sapphire crystal, diamond-set bezel, screw-locked crown, water-resistant to 50 m. Diameter 37 mm, thickness 12.4 mm, water resistant to 50 m; Dial: black dial with new “Lady Tapisserie” pattern, circular-grained external zone, white gold applied hour-markers and Royal Oak hands with luminescent coating; 32 brilliant-cut diamonds; ~1.02 carats (bezel); Black rubber strap with stainless steel AP folding clasp. Full set. Maker: Audemars Piguet. Reference: 26231ST.ZZ.D002CA.01. Available through ELITA's private desk — verification review, discreet handling and storage. Price on request. Case Size: 37mm. Case Material: Stainless steel case. Movement: Automatic — Calibre 2385. Dial: Black dial with new “Lady Tapisserie” pattern, circular-grained external zone, white gold applied hour-markers and Royal Oak hands with luminescent coating. Bracelet/Strap: Black rubber strap with stainless steel AP folding clasp. Complications: Chronograph, hours, minutes, small seconds and date.