MODEL : Yacht-Master II
MODEL NUMBER : 116680
MODEL CASE : Oyster, 44 mm, Oystersteel
OYSTER ARCHITECTURE : Monobloc middle case, screw-down case back and winding crown
DIAMETER : 44 mm
MATERIAL : Oystersteel
BEZEL : Bidirectional rotatable 24-hour graduated bezel. Two-colour brown and black Cerachrom insert in ceramic, moulded numerals and graduations
WINDING CROWN : Screw-down, Triplock triple waterproofness system
CRYSTAL : Scratch-resistant sapphire
WATER RESISTANCE : Waterproof to 100 metres / 330 feet
MOVEMENT : Perpetual, mechanical, self-winding, regatta chronograph
CALIBRE : 4161, Manufacture Rolex
PRECISION : -2/+2 sec/day, after casing
FUNCTIONS : Centre hour and minute hands, small seconds hand at 6 o'clock. Programmable countdown with mechanical memory and on-the-fly synchronization. Stop-seconds for precise time setting
OSCILLATOR : Paramagnetic blue Parachrom hairspring
WINDING : Bidirectional self-winding via Perpetual rotor
POWER RESERVE : Approximately 72 hours
BRACELET : Oyster, flat three-piece links
BRACELET MATERIAL : Oystersteel
CLASP : Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link
DIAL : White
DETAILS : Highly legible Chromalight display with long-lasting blue luminescence
CERTIFICATION : Superlative Chronometer (COSC + Rolex certification after casing)
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