The Tudor Black Bay 58 GMT "Coke" Steel Black Dial 39mm Ref. M7939G1A0NRU-0001 merges classic dive watch aesthetics with advanced travel capability, featuring a 39mm stainless steel case finished in both polished and satin textures. Its standout element is the 24-hour bidirectional bezel in stainless steel, fitted with a black and burgundy anodised aluminium insert for clear day-night indication. The COSC and METAS-certified Manufacture Calibre MT5450-U delivers a precise integrated GMT function, along with hours, minutes, seconds, and a 65-hour power reserve. The domed black dial is accented by gilt applied hour markers for enhanced legibility, all protected under a domed sapphire crystal. Fitted with a robust "rivet-style" stainless steel bracelet and TUDOR “T-fit” clasp, this model offers 200 meters of water resistance. Designed for travelers and enthusiasts, the Black Bay 58 GMT "Coke" provides technical reliability and iconic styling in a versatile 39mm profile.