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Oyster Perpetual

Yacht-Master II

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Yacht-Master II
Oyster, 44 mm, yellow gold

Charting its course

The Rolex 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.

18 ct gold

Model Features

By operating its own exclusive foundry, Rolex has the unrivalled ability to cast the highest quality 18 ct gold alloys. According to the proportion of silver, copper, platinum or palladium added, different types of 18 ct gold are obtained: yellow, pink or white. They are made with only the purest metals and meticulously inspected in an in-house laboratory with state-of-the-art equipment, before the gold is formed and shaped with the same painstaking attention to quality. Rolex's commitment to excellence begins at the source.

White Dial

Model Features

The Yacht-Master II’s red-contoured countdown arrow and the seconds hand are readable at a glance against the dedicated 10‑minute countdown graduation on the dial and the graduations on the bezel.

The Oyster bracelet

Model Features

The Oyster bracelet is a perfect alchemy of form and function, aesthetics and technology, designed to be both robust and comfortable. It is equipped with an Oysterlock folding clasp, which prevents accidental opening and the Easylink comfort extension link, also exclusive to Rolex. This ingenious system allows the wearer to increase the bracelet length by approximately 5 mm, providing additional comfort in any circumstance.

4161 Movement

Model Features

The Yacht-Master II is equipped with calibre 4161, a self-winding mechanical regatta chronograph movement entirely developed and manufactured by Rolex. The result of over 35,000 hours of development, the Yacht-Master II introduces a new regatta countdown with a unique, patented mechanical memory created by Rolex. A number of the 360 components in the 4161 movement are so tiny or complex that they can only be made by new, cutting-edge technology. Like all Rolex Perpetual movements, the 4161 is a certified Swiss chronometer, a designation reserved for high-precision watches that have successfully passed the Swiss Official Chronometer Testing Institute (COSC) tests. Its architecture, in common with all Oyster watch movements, makes it singularly reliable.

Ring Command Bezel

Model Features

Rolex achieved perfection when it turned its attention to redefining the purpose and functionality of the bezel. Typically, a bezel operates independently from the internal mechanism; however, the Ring Command bezel in the Yacht-Master II regatta chronograph operates in conjunction with it. As a mechanical component linked to the movement, the bezel literally acts as the key to the programmable countdown, allowing it to be set and synchronised to the sequence of race start times. Complex in design, but simple in use, it is functionally beautiful.

Reference 40331
Model case
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
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
Bracelet
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
Certification
Superlative Chronometer (COSC + Rolex certification after casing)

the Yacht-Master II

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the Yacht-Master II

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