Submariner Date Watch: Oystersteel - M116610LN-0001

Oystersteel
The case of the Rolex steel model is made of Oystersteel. Oystersteel belongs to the 904L steel family and is most commonly used in high-tech industries, aerospace, and the chemical industry, where the highest corrosion resistance is essential. Oystersteel is highly durable and has excellent polishability, maintaining its beauty even in the harshest environments.

Black Dial
The dial, which boasts high uniqueness and visibility, is the face of Rolex. It features hour markers made of 18 ct gold that are resistant to discoloration. All Rolex dials are designed and manufactured in-house, with most processes done by hand to ensure perfection.

Oyster Bracelet
The Oyster bracelet is a perfect fusion of form and function, beauty and technology, characterized by its robust structure and comfortable fit. The Oysterlock clasp prevents accidental opening. Additionally, the innovative Glidelock allows for length adjustment of the bracelet without tools, ensuring a safe and comfortable fit even over a diving suit.

3135 Movement
This model is equipped with the Caliber 3135, a mechanical self-winding movement developed and manufactured by Rolex. Like all Rolex perpetual movements, the Caliber 3135 is chronometer certified, having passed the tests of the Swiss Official Chronometer Testing Institute (COSC), awarded only to high-precision watches. This movement is equipped with a Parachrom hairspring, providing excellent resistance to shocks and temperature changes. Its structure boasts exceptional reliability, like all Oyster watch movements.

Unidirectional Rotating Bezel
The unidirectional rotating bezel is an essential feature for the Submariner. The bezel is marked with a 60-minute scale, allowing divers to measure dive time and decompression stops accurately and safely. Made of highly corrosion-resistant hard ceramic, this Cerachrom bezel insert manufactured by Rolex is nearly scratch-proof. The zero marker features a luminous material capsule, making it clearly visible in the dark. The notches on the edge of the bezel are meticulously designed for reliable operation underwater, even while wearing gloves.

Specifications
Reference 116610LN
Case
Oyster case, 40 mm, Oystersteel
Structure Monobloc middle case, screw-down case back, crown
Diameter 40 mm
Material Oystersteel
Bezel 60-minute scale unidirectional rotating, Cerachrom, engraved numbers and scales are platinum-coated
Crown Screw-down, Triplock (triple waterproof system)
Crystal Scratch-resistant sapphire, Cyclops lens over the date display
Water Resistance 300m/1,000 feet waterproof
Movement
Movement Perpetual, mechanical, self-winding
Caliber 3135, fully manufactured by Rolex
Precision -2 to +2 seconds per day (after casing)
Functions Central hour, minute, and second hands. Instantaneous date display with rapid date setting function. Precise time setting with stop-seconds function
Oscillator Anti-magnetic blue Parachrom hairspring
Self-winding Bi-directional self-winding via perpetual rotor
Power Reserve Approximately 48 hours
Bracelet
Bracelet Oyster (3-link)
Bracelet Material Oystersteel
Clasp Oysterlock with safety catch, Rolex Glidelock extension system
Dial
Dial Black
Other Chromalight display (blue luminescence with long-lasting glow)
Certification
High-precision chronometer (COSC, Rolex certified after casing)

Notes

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