The Audemars Piguet Royal Oak Selfwinding ref. 15450ST.OO.1256ST.01.A has a 37 mm stainless steel case and the self-winding Calibre 3120. Self-winding Calibre 3120, 60 h power reserve; Functions: hours, minutes, centre seconds and date; Case: Glareproofed sapphire crystal and caseback, screw-locked crown, water-resistant to 50 m. Diameter 37 mm, thickness 9.8 mm, water resistant to 50 m; Dial: silver-toned dial with “Grande Tapisserie” pattern, white gold applied hour-markers and Royal Oak hands with luminescent coating; Stainless steel with AP folding clasp. Full set. Maker: Audemars Piguet. Reference: 15450ST.OO.1256ST.01.A. 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 3120. Dial: Silver-toned dial with “Grande Tapisserie” pattern, white gold applied hour-markers and Royal Oak hands with luminescent coating. Bracelet/Strap: Stainless steel with AP folding clasp. Complications: Hours, minutes, centre seconds and date.