Technical details
| Date indication |
Y |
| Chronograph |
N |
| Movement model |
3135 |
| Screw-in crown |
Y |
| Mechanism type |
Mechanical (auto wind) |
| Watch dial type |
Analog dial |
| Waterproof up to |
1220 m |
| Number of watch hands |
3 |
Design
| Watch dial color |
Black |
| Scratch-resistant glass |
Y |
| Type |
Wristwatch |
| Watch marker style |
Arabic numerals/Non numeral |
| Form factor |
Round |
| Watch glass type |
Sapphire |
| Band material |
Steel |
| Suggested gender |
Male |
40 mm, steel 904L, 3135 Calibre
How Rolex Conquered the Deep
The ultra-resistant divers’ model engineered by Rolex for the conquest of the deep. Waterproof to a depth of 4,000 feet (1,220 metres) for the Sea-Dweller and 12,800 feet (3,900 meters) for the Rolex Deepsea, it is the result of decades of collaboration with diving professionals.
904L Stainless Steel
Rolex uses 904L stainless steel for its steel watch cases. 904L is mainly used in the high technology, aerospace and chemical industries, where maximum resistance to corrosion is essential. A superalloy, 904L is extremely resistant and highly polishable. It maintains its beauty even in the harshest environments.
Black Dial
The dial is the distinctive face of a Rolex watch, the feature most responsible for its identity and readability. Characterised by hour markers fashioned from 18 ct gold to prevent tarnishing, every Rolex dial is designed and manufactured in-house, largely by hand to ensure perfection.
The Oyster bracelet
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 and comfortably over a diving suit.
3135 Movement
This model is equipped with calibre 3135, a self-winding mechanical movement entirely developed and manufactured by Rolex. Like all Rolex Perpetual movements, the 3135 is a certified Swiss chronometer, a designation reserved for high-precision watches that have successfully passed the Swiss Official Chronometer Testing Institute (COSC) tests. The 3135 features a Parachrom hairspring, offering greater resistance to shocks and to temperature variations. Its architecture, in common with all Oyster watch movements, makes it singularly reliable.
Unidirectional Rotatable Bezel
The Sea-Dweller's rotatable bezel is a key functionality of the watch. Its engraved 60-minute graduations allow a diver to accurately and safely monitor diving time and decompression stops. Manufactured by Rolex from a hard, corrosion-resistant ceramic, the Cerachrom bezel insert is virtually scratchproof. A luminescent capsule on the zero marker ensures legibility, no matter how dark the environment. The bezel’s knurled edge is carefully designed to offer excellent grip under water, even with gloves.
