Model case

Model case

Oyster, 44 mm, steel and Everose gold

Oyster architecture

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

Diameter

44 mm

Material

Everose Rolesor - combination of 904L steel and 18 ct Everose 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

Movement

Perpetual, mechanical, self-winding, regatta chronograph

Calibre

4161, Manufacture Rolex

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

Precision

Officially certified Swiss chronometer (COSC)

Oscillator

Paramagnetic blue Parachrom hairspring

Winding

Bidirectional self-winding via Perpetual rotor

Bracelet

Bracelet

Oyster, flat three-piece links

Bracelet material

Everose Rolesor - combination of 904L steel and 18 ct Everose gold

Clasp

Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link

Dial

Dial

White