MODEL CASEOyster, 41 mm, OystersteelOYSTER ARCHITECTUREMonobloc middle case, screw-down case back and winding crownDIAMETER41 mmMATERIALOystersteelBEZELUnidirectional rotatable 60-minute graduated, scratch-resistant Cerachrom insert in ceramic, numerals and graduations coated in platinumWINDING CROWNScrew-down, Triplock triple waterproofness systemCRYSTALScratch-resistant sapphireWATER RESISTANCEWaterproof to 300 metres / 1,000 feetMOVEMENTPerpetual, mechanical, self-windingCALIBRE3230, Manufacture RolexPRECISION-2/+2 sec/day, after casingFUNCTIONSCentre hour, minute and seconds hands. Stop-seconds for precise time settingOSCILLATORParamagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbersWINDINGBidirectional self-winding via Perpetual rotorPOWER RESERVEApproximately 70 hoursBRACELETOyster, flat three-piece linksBRACELET MATERIALOystersteelCLASPFolding Oysterlock safety clasp with Rolex Glidelock extension system