Tudor Black Bay 58 18K

The Tudor Black Bay 58 18K, reference M79018V-0001, is a dive watch cased in 18 ct yellow gold and measuring 39mm across. The case stands 12.7mm thick, with a screw-down crown in the same gold. A unidirectional rotating bezel in yellow gold carries a green anodised aluminium insert with gilded markings, matched to the green domed dial beneath a domed sapphire crystal. The self-winding Calibre MT5400 drives the watch, chronometer certified and offering around 70 hours of power reserve. Hands and indices carry luminous treatment for low-light legibility, and the open case back lets the movement show through. It comes on a textile strap closed with an 18 ct yellow gold pin buckle. Tudor rates the case to 200 metres.