Case size: 50 mm
Thickness: ~23 mm
Material: RLX Titanium (Rolex’s proprietary grade-5 titanium alloy)
Water resistance: 11,000 meters / 36,090 ft
Crystal: Domed sapphire crystal ~9.5 mm thick
Movement: Rolex Caliber 3230 automatic
Power reserve: ~70 hours
Bracelet: Titanium Oyster bracelet with Glidelock and Fliplock dive extensions
Helium escape valve: Yes
Caseback: Titanium with Ringlock System
Rolex uses its Ringlock architecture to survive the extreme pressure:
Nitrogen-alloyed steel compression ring inside the case
5.5 mm titanium caseback
Thick domed sapphire crystal
.
💡 Fun fact: The Deepsea Challenge is the most water-resistant watch Rolex has ever produced, far exceeding even the Rolex Sea‑Dweller Deepsea (3,900 m rating).
BOX AND PAPERS: Original Box and Papers