TUDOR Black Bay GMT S&G

41mm steel case, Brown leather strap
CASE: 41mm steel case with polished and satin finish
BEZEL: 48-notch bidirectional rotating bezel with a steel core, covered by a 0.3mm yellow gold cap. 24-hour graduated matte brown and black anodized aluminum disc
MOVEMENT: Manufacture Caliber MT5652 (COSC) Self-winding mechanical movement with bidirectional rotor system Built-in architecture
DIAL: Black, domed
WINDING CROWN: Screw-down winding crown, with the TUDOR rose engraved and lacquered in black, with black anodized aluminum winding crown tube. Steel covered by a 0.3mm yellow gold cap
CRYSTAL: Domed sapphire crystal
WATERPROOFNESS: Waterproof to 200m (660 ft)
BRACELET: Brown leather strap with steel folding clasp and safety catch