This TUDOR Black Bay GMT S&G contains an automatic movement in a 41mm stainless steel case. The yellow gold screw-down crown, has the TUDOR rose in relief and a circular satin-brushed steel winding crown tube. The rotating bezel is made of yellow gold with a 24-hour graduated matte brown and black aluminum disc. The black dial showcases a GMT function and date window. It is covered by domed sapphire crystal. The brown leather strap has a folding clasp. Waterproof to 200 meters.