It features a black dial and large luminescent hour markers. Waterproof to a depth of 3,900 meters (12,800 feet) with a unidirectional 60-minute rotatable bezel, the Rolex Deepsea is amongst the ultra-resistant divers’ watches engineered by Rolex for deep-sea exploration. A paragon of robustness and reliability, the Oyster case of the Deepsea is guaranteed waterproof to a depth of 3,900 meters (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.

Rolex uses Oystersteel for its steel watch cases. Specially developed by the brand, Oystersteel belongs to the 904L steel family, alloys most commonly used in high-technology and in aerospace and chemical industries, where maximum resistance to corrosion is essential. Oystersteel is extremely resistant, offers an exceptional finish once polished, and maintains its beauty even in the harshest environments.

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.

The 60-minute graduated, the unidirectional rotatable bezel of the Rolex Deepsea enables divers to precisely and safely monitor their dive and decompression times. It is equipped with a patented black Cerachrom bezel insert manufactured by Rolex in a virtually scratch-proof ceramic whose color is unaffected by ultraviolet rays. The graduation is coated via PVD (Physical Vapour Deposition) with a thin layer of platinum. The sleek black 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 dial is the distinctive face of a Rolex watch, the feature most responsible for its identity and readability. Characterized by hour markers fashioned from gold to prevent tarnishing, every Rolex dial is designed and manufactured in-house, largely by hand to ensure perfection.

The Caliber 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 Chronergy escapement patented by Rolex, which combines high energy efficiency with great dependability. Made of nickel-phosphorus, it is also insensitive to magnetic interference.