A modern embodiment of TUDOR's iconic Submariner design, this Black Bay model features an extraordinary self-winding mechanical TUDOR movement with bidirectional rotor system, the Black Bay Chrono S G features a champagne dial with black counters set beneath domed Sapphire Crystal glass for protection. Housed by a 41mm satin finish steel case with a fixed yellow gold bezel with matt black anodised aluminium disc with tachymetric scale and yellow gold markings.