Rolex Sea-dweller 16660 MK1 Matte Dial lug-width-in-mm-19 as it represents one of

as it represents one of the first automatic chronographs: the Carrera 1153

The 78790A bracelet is in very good condition with a clasp stamped ‘AD 5’ and solid endlinks

- Valjoux 88 movement

The dial has lume plots that have taken on a lovely yellow hue that is matching with the hands

This watch has been certified at Certifiwatch under registration number CF-0103621

Rolex Sea-dweller 16660 MK1 Matte Dial lug-width-in-mm-19 as it represents one ofWith this Sea Dweller, also nicknamed the Triple Six, Rolex doubled the depth rating to 4,000 ft thanks to its larger helium escape valve and sapphire crystal, compared to its predecessor, reference 1665. Furthermore, Rolex introduced a unidirectional bezel for diver safety, making this Sea Dweller a true transitional model. This example features a rare matte dial, used in the first production batch before Rolex later switched to glossy dials with