The Tudor Black Bay Yellow Gold & Steel Black Dial 39mm Ref. M79663-0001 delivers reliable performance in a compact and versatile format. This model features a 39mm stainless steel case with polished and satin finishes, measuring 12.0mm thick for comfortable everyday wear. The fixed bezel, capped with 0.3mm yellow gold, surrounds a black dial with luminous index and dot markers for optimal legibility in various lighting. Powered by the COSC-certified Manufacture Calibre MT5602, the watch offers a 70-hour power reserve, self-winding mechanical movement, and chronometer precision. The screw-down winding crown, adorned with the Tudor rose in relief and a yellow gold cap, enhances water resistance up to 100 meters. The two-tone bracelet integrates solid yellow gold and gold-capped steel center links, finished with Tudor’s “T-fit” folding clasp and a solid gold logo. Key features include its robust in-house movement, classic two-tone design, and practical 39mm case size.