The Oyster Perpetual Rolex Deepsea in 18 ct yellow gold with a Cerachrom bezel insert in blue ceramic and an Oyster bracelet.

The 60-minute graduated, unidirectional rotatable bezel of the Rolex Deepsea enables divers to precisely and safely monitor their dive and decompression times. The triangular ‘zero’ marker of the graduation is visible in the dark thanks to an embedded capsule containing a luminescent material emitting a long-lasting blue glow. The graduation on the bezel is coated via PVD (Physical Vapour Deposition) with a thin layer of yellow gold. The blues found in the compression ring, the dial and the Cerachrom bezel insert combine to create a subtle oceanic palette that is accentuated by the 18 ct yellow gold of the case and the Oyster bracelet.

The blue lacquer dial bearing the name ‘DEEPSEA’ in powdered yellow. The dial features large Chromalight hour markers and hands, filled with luminescent material that emits a long-lasting blue glow for excellent legibility in dark conditions. The simple forms of the hour markers – triangles, circles and rectangles – and the hands, which are clearly differentiated in size and shape, are filled or coated with a luminescent material emitting a long-lasting blue glow – for up to two times longer than traditional phosphorescent materials.

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.

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 clasp, which prevents accidental opening, and an ingenious Glidelock, allowing fine adjustments of the bracelet without using any tools — and allowing it to be worn comfortably over a diving suit.

A paragon of robustness and reliability, the Oyster case of the Deepsea is guaranteed waterproof to a depth of 3,900 metres (12,800 feet). Its middle case is crafted from a solid block of particularly corrosion-resistant Oystersteel. The case back, edged with fine fluting, is hermetically screwed down with a special tool that allows only Rolex watchmakers to access the movement. This model’s 44 mm Oyster case, reinforced with the patented Ringlock System, was designed to provide the highest degree of resistance and reliability in a size that remains wearable and practical.

The calibre 3235 is a new-generation movement entirely developed and manufactured by Rolex. This self-winding mechanical movement is at the forefront of the art of watchmaking. A consummate demonstration of Rolex technology, with 14 patents, it offers fundamental gains in terms of precision, power reserve, resistance to shocks and magnetic fields, convenience and reliability. It incorporates the new patented Chronergy escapement, which combines high energy efficiency with great dependability. Made of nickel-phosphorus, it is also insensitive to magnetic interference.

Dial

• Dial : Blue
• Details : Highly legible Chromalight display with long-lasting blue luminescence

Case

• Case : Oyster, 44 mm, yellow gold
• Oyster architecture : Monobloc middle case, screw-down case back and winding crown. Rolex Ringlock System case architecture with Helium escape valve
• Diameter : 44 mm
• Material : 18 ct yellow gold
• Bezel : Unidirectional rotatable 60-minute graduated, scratch-resistant Cerachrom insert in blue ceramic, numerals and graduations coated in gold
• Winding crown : Screw-down, Triplock triple waterproofness system
• Crystal : Domed, 5.5 mm-thick scratch-resistant sapphire
• Water resistance : Waterproof to 3,900 metres / 12,800 feet, helium escape valve

Movement

• Movement : Perpetual, mechanical, self-winding
• Calibre : 3235, Manufacture Rolex
• Precision : -2/+2 sec/day, after casing
• Certification : Superlative Chronometer (COSC + Rolex certification after casing)
• Functions : Centre hour, minute and seconds hands. Instantaneous date with rapid setting. Stop-seconds for precise time setting
• Oscillator : Paramagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers
• Winding : Bidirectional self-winding via Perpetual rotor
• Power reserve : Approximately 70 hours

Bracelet

• Bracelet : Oyster, three-piece solid links
• Material : 18 ct yellow gold
• Clasp : Folding Oysterlock safety clasp with Rolex Glidelock extension system