Model Case Oyster, 42 Mm, Rose Gold Oyster Architecture Monobloc Middle Case, Screw-down Case Back And Winding Crown Diameter 42 Mm Material 18 Ct Rose Gold Bezel Fluted, Bidirectional Rotatable Rolex Ring Command Winding Crown Screw-down, Twinlock Double Waterproofness System Crystal Scratch-resistant Sapphire, Cyclops Lens Over The Date Water Resistance Waterproof To 100 Metres / 330 Feet Mechanical, Self-winding, Dual Time Zones, Annual Calendar Movement Perpetual, Mechanical, Self-winding, Dual Time Zones, Annual Calendar Calibre 9001, Manufacture Rolex Precision -2/+2 Sec/day, After Casing Functions Centre Hour, Minute And Seconds Hands. 24-hour Display On Off-centre Disc. Second Time Zone. Instantaneous Annual Calendar At 3 O’clock And Rapid-setting Of The Date. Month Display Via 12 Apertures Around The Circumference Of The Dial. Stop seconds For Precise Time Setting Oscillator Paramagnetic Blue Parachrom Hairspring. High-performance Paraflex Shock Absorbers Winding Bidirectional Self-winding Via Perpetual Rotor Power Reserve Approximately 72 Hours Bracelet Oysterflex Bracelet Material Flexible Metal Blades Overmoulded With High-performance Elastomer Clasp Folding Oysterclasp With Rolex Glidelock Extension System