Rolex Deepsea 44 mm

The Rolex Deepsea 44 mm, reference 136668LB-0001, is a dive watch cased in 18 ct yellow gold measuring 44 mm across and 17.7 mm thick. The dial sits under a domed, scratch-resistant sapphire crystal, and the unidirectional bezel carries a Cerachrom insert in blue ceramic. Inside is the calibre 3235, a self-winding movement certified as a chronometer with 70 hours of power reserve. The blue dial shows a date function and central seconds, with luminous hands and indices for legibility in low light. A helium escape valve sits alongside the screw-down crown, built for deep saturation diving. The yellow gold Oyster bracelet closes with a folding Oysterlock clasp fitted with Rolex's Glidelock extension system. Water resistance reaches a depth of 3900 metres, exceptional for a wristwatch of this kind.