Tudor Black Bay GMT 41 mm steel case, Brown leather strap.  41 mm steel case with polished and satin finish. 48-notch bidirectional rotating bezel in yellow gold with 24-hours graduated matt brown and black anodised aluminium disc. Yellow gold screw-down crown, with the TUDOR rose in relief, with circular satin-brushed steel winding crown tube. 
Manufacture Calibre MT5652 (COSC) Self-winding mechanical movement with bidirectional rotor system Built-in architecture.  Black, domed. Brown leather strap with steel folding clasp and safety catch. Domed sapphire crystal. Waterproof to 200 m (660 ft)

Brand: TUDOR M79833MN-0003
Tudor Bracelet Sizing Guide