Model case

Crystal

Scratch-resistant sapphire

Water-resistance

Waterproof to 100 metres / 330 feet

Model case

Oyster, 44 mm, white gold and platinum

Bezel

Rolex Ring Command (bidirectional 90° rotatable interacting with the movement) in solid platinum with raised numerals

Diameter

44 mm

Winding crown

Screw-down, Triplock triple waterproofness system

Oyster architecture

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

Material

18 ct white gold

Movement

Calibre

4161, Manufacture Rolex

Model case

Perpetual, mechanical, self-winding, regatta chronograph

Oscillator

Paramagnetic blue Parachrom hairspring

Winding

Bidirectional self-winding via Perpetual rotor

Precision

Officially certified Swiss chronometer (COSC)

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

Bracelet

Clasp

Folding Oysterlock safety clasp with Easylink 5 mm comfort extension link

Bracelet material

18 ct white gold

Bracelet

Oyster, flat three-piece links

Dial

Details

Snailed white gold small seconds counter

Dial

White

The Yacht-Master II is designed to meet the needs of professional sailors. This regatta chronograph features the world's first programmable countdown with a mechanical memory. It provides precise synchronization with the crucial starting sequence of a yacht race.