The Audemars Piguet Royal Oak Selfwinding 37 mm (Ref. 15550SR.OO.1356SR.02) seamlessly blends stainless steel with 18K pink gold, featuring a silver-toned "Grande Tapisserie" dial. It houses the selfwinding Calibre 5900 movement, offering a 60-hour power reserve. The watch is water-resistant up to 50 meters and comes with a stainless steel bracelet adorned with 18K pink gold links.