MODEL CASE
Oyster, 40 mm, yellow gold.

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

DIAMETER
40 mm.

MATERIAL
18 ct yellow gold.

BEZEL
Fixed, with engraved tachymetric scale, in 18 ct yellow 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 Rolex.

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 yellow gold.

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

DIAL
Golden and black.

DETAILS
Highly legible Chromalight display with long-lasting blue luminescence.

CERTIFICATION
Superlative Chronometer (COSC + Rolex certification after casing).