MODEL CASE
Oyster, 44 mm, yellow gold

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

DIAMETER
44 mm

MATERIAL
18 ct yellow gold

BEZEL
Rolex Ring Command (bidirectional 90° rotatable interacting with the movement) in 18 ct gold with blue Cerachrom insert in ceramic and numerals coated in gold

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
18 ct yellow gold

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

DIAL
White

DETAILS
Highly legible Chromalight display with long-lasting blue luminescence