Rolex Deepsea 44mm, Oystersteel Ref. 136660

The Rolex Deepsea Ref. 136660 stands at the pinnacle of professional deep-sea diving watches, combining cutting-edge engineering with Rolex’s hallmark precision and durability. Crafted from corrosion-resistant Oystersteel and featuring a robust 44mm Oyster case, this watch is designed to withstand the extreme pressures of the ocean’s depths, while maintaining the elegance and reliability Rolex is known for.

This model features a striking intense blue to deep black gradient dial, famously known as the “D‑Blue” dial — a tribute to James Cameron’s historic solo dive to the Mariana Trench. The contrasting large Chromalight markers ensure excellent legibility even in total darkness, while the unidirectional rotatable bezel with a black Cerachrom insert allows for precise dive-time tracking.

The Calibre 3235 automatic movement inside is a powerhouse of Rolex innovation, offering enhanced efficiency, exceptional precision, and a 70-hour power reserve. Designed with the patented Ringlock System, Triplock crown, and a Helium Escape Valve, the Deepsea guarantees water resistance up to an extraordinary 3,900 meters / 12,800 feet.

Engineered for saturation diving yet refined enough for everyday wear, the Deepsea 136660 is a fusion of performance and presence.

✅ Technical Specifications:

• Model: Rolex Deepsea

• Reference: 136660

• Case Material: Oystersteel (904L stainless steel)

• Case Diameter: 44 mm

• Case Thickness: Approx. 17.7 mm

• Bezel: Unidirectional rotatable bezel with 60-minute graduation; black Cerachrom ceramic insert with platinum-coated numerals

• Dial: D-Blue gradient dial (blue to black), large Chromalight markers and hands with long-lasting blue luminescence

• Crystal: 5.5 mm thick domed sapphire, scratch-resistant

• Water Resistance: 3,900 meters / 12,800 feet (Ringlock System, Triplock screw-down crown, Helium Escape Valve)

• Movement: Rolex Calibre 3235, perpetual, mechanical, self-winding

• Power Reserve: Approximately 70 hours

• Functions:

  • Hours, minutes, seconds

  • Instantaneous date with rapid setting

  • Stop-seconds for precise time setting

• Oscillator: Blue Parachrom hairspring, anti-magnetic

• Shock Absorption: Paraflex shock absorbers

• Bracelet: Oyster bracelet in Oystersteel, three-piece solid links

• Clasp: Oysterlock safety clasp with Rolex Glidelock extension system + Fliplock extension link (allows tool-free adjustment even over wetsuits)

• Certification: Superlative Chronometer (COSC + Rolex in-house certification post-casing)

• Lug Width: 21 mm

• Lug-to-Lug: Approx. 52 mm

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