The Tudor Heritage Black Bay Yellow Gold & Steel Champagne Dial 41mm Ref. M79733N-0004 combines robust dive watch engineering with a refined two-tone aesthetic. Launched in 2017, this 41mm model features a polished and satin-finished steel case, measuring 14.7mm thick, with a unidirectional rotating bezel in steel covered by a 0.3mm yellow gold cap and a matte black aluminium insert with 60-minute graduated gold markings. The domed champagne dial offers luminescent index and dot markers for enhanced legibility, protected by a domed sapphire crystal. Powered by the COSC-certified Manufacture Calibre MT5612, this watch delivers a 70-hour power reserve, self-winding reliability, and date display. The screw-down crown is engraved with the Tudor rose and fitted with a black anodised aluminium tube. Water resistance is rated to 200 meters. The two-tone bracelet features solid yellow gold and steel links, secured by a folding clasp with safety catch for durable wear.