The Tudor Black Bay Yellow Gold & Steel Black Dial 41mm Ref. M79683-0001 stands out for its blend of robust engineering and two-tone luxury. The 41mm case is crafted from stainless steel with polished and satin finishes, measuring 12.2mm thick for a balanced fit on the wrist. The fixed bezel, capped with 0.3mm yellow gold, frames a classic black dial with luminous dot and index markers for clear legibility. Inside, the COSC-certified Manufacture Calibre MT5601 delivers a 70-hour power reserve, self-winding operation, and chronometer precision. The screw-down crown features the Tudor rose in relief and is protected by a yellow gold cap, supporting water resistance up to 100 meters. The bracelet combines solid yellow gold and steel-capped center links, secured by Tudor’s “T-fit” folding clasp with a solid gold logo. Key features include a reliable in-house movement, versatile 41mm sizing, and refined two-tone construction.