This Audemars Piguet Royal Oak Selfwinding Dual Time watch in 18K rose gold.... features a 39mm case, black guilloche dial, and an original AP crocodile strap. The Audemars Piguet Royal Oak Selfwinding Dual Time also features an automatic movement with a second time zone, power reserve, and date display. Functions: Hours, Minutes, Second Time Zone at 6, 24-hour dial at 7, Date at 2, Power-Reserve at 10. Water Resistance: 50m / 165ft, Metallic silvered dial with an engraved tapestry "waffle" design. Box & Cert Dated Nov 2010, Local AD.