MODEL CASEOyster, 40 mm, Everose goldOYSTER ARCHITECTUREMonobloc middle case, screw-down case back and winding crownDIAMETER40 mmMATERIAL18 kt Everose goldBEZELBidirectional rotatable 24-hour graduated bezel. Two-colour brown and black Cerachrom insert in ceramic, moulded numerals and graduationsWINDING CROWNScrew-down, Triplock triple waterproofness systemCRYSTALScratch-resistant sapphire, Cyclops lens over the dateWATER RESISTANCEWaterproof to 100 metres / 330 feetMOVEMENTPerpetual, mechanical, self-winding, GMT functionCALIBRE3285, Manufacture RolexPRECISION-2/+2 sec/day, after casingFUNCTIONSCentre hour, minute and seconds hands. 24-hour display. Second time zone with independent rapid-setting of the hour hand. Instantaneous date. Stop-seconds for precise time settingOSCILLATORParamagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbersWINDINGBidirectional self-winding via Perpetual rotorPOWER RESERVEApproximately 70 hours