Specifications of the Rolex Sea-Dweller Black Dial:
Case: 43mm Oystersteel
Crystal: Domed sapphire crystal
Bezel: Unidirectional rotatable bezel with Chroma insert
Movement: Rolex Caliber 3235
Power reserve: 40 hours
Dial: Black with Chroma Light hour markers and hands
Date window: At 3 o'clock
Bracelet: Oyster bracelet with folding Oyster Lock safety clasp and Rolex Glide Lock extension system
Water resistance: 300 meters
2 Year warranty