Tudor Black Bay One 31 S&G

The Tudor Black Bay One 31 S&G (M79613-0005) has a 31mm steel case, 9.5mm thick, paired with a fixed bezel in solid yellow gold set with diamonds. The black dial features diamond-set hour markers along with luminous hands and markers, protected by a sapphire crystal. It is powered by the automatic Manufacture Calibre MT5201, a COSC-certified chronometer offering 50 hours of power reserve and water resistance to 100 metres. The bracelet combines steel and solid yellow gold center links, with remaining links in a steel core capped with 0.2mm of yellow gold, secured by a T-fit folding clasp featuring a solid yellow gold logo.