MODEL NUMBER : 116509-0055

MODEL CASE : Oyster, 40 mm, white gold

OYSTER ARCHITECTURE : Monobloc middle case, screw-down case back and winding crown

DIAMETER : 40 mm

MATERIAL : 18 ct white gold

BEZEL : Fixed, with engraved tachymetric scale, in 18 ct white gold

WINDING CROWN : Screw-down, Triplock triple waterproofness system

CRYSTAL : Scratch-resistant sapphire

WATER RESISTANCE : Waterproof to 100 metres / 330 feet

MOVEMENT : Perpetual, mechanical chronograph, self-winding

CALIBRE : 4130, Manufacture

PRECISION : -2/+2 sec/day, after casing

FUNCTIONS : Centre hour, minute and seconds hands, small seconds hand at 6 o'clock. Chronograph (centre hand) accurate to within 1/8 of a second, 30-minute counter at 3 o'clock and 12-hour counter at 9 o'clock. 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 : 18 ct white gold

CLASP : Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link

DIAL : Black set with diamonds

GEM SETTING : Diamonds in 18 ct gold settings

CERTIFICATION : Superlative Chronometer (COSC + certification after casing)