James Cameron, National Geographic explorer-in-residence on-board the Deepsea Challenger is preparing to go even deeper this time also accompanied by another Rolex watch, the newly released Rolex Deepsea Challenge watch. Water resistance: 12,000 meters, 39,370 feet Rolex Caliber 3135 (automatic mechanical) Diameter 51.4mm, Thickness 28.5mm Grade 5 titanium case-back 5.3mm thick Sapphire crystal 14.3mm thick
