The Tudor Black Bay 54 Ref. 79000N is a faithful and historically significant reissue that pays homage to the brand’s very first dive watch, the 1954 Oyster Prince Submariner Ref. 7922, reproducing its original proportions with exceptional fidelity in a compact 37mm stainless steel case that measures just 11.2mm in thickness with a 20mm lug width . This smaller case size, paired with a lug-to-lug of approximately 46mm, offers a comfortable and vintage-correct wearing experience that has made the BB54 a favorite among enthusiasts seeking a wearable modern dive watch . The matte black dial features a domed sapphire crystal that mimics the acrylic crystals of the original, while the warm gilt-toned hour markers and hands—including the signature “Snowflake” hour hand, pencil minute hand, and lollipop seconds hand—reference the radium and tritium lume of 1950s professional dive watches, adding a rich, historically resonant character to the dial . The unidirectional rotating bezel features a black anodised aluminium insert with a no-dash configuration, precisely replicating the original 7922’s design where the first fifteen minutes are marked only by a single triangle, reinforcing its authenticity as a tribute to the brand’s first dive watch . At its heart beats the in-house Manufacture Calibre MT5400, a COSC-certified automatic movement with 27 jewels, a frequency of 28,800 vibrations per hour, and an impressive 70-hour power reserve, delivering reliable precision and the convenience of a modern mechanical caliber . This configuration is presented on a black rubber strap with fitted end-links, offering a sporty, durable, and historically appropriate alternative to the steel bracelet, secured by a folding clasp . With 200 meters of water resistance and a screw-down crown with the Tudor rose emblem, the BB54 combines the brand’s legendary dive watch heritage with contemporary reliability and wearability, making it an exceptional choice for collectors who appreciate historically accurate design and modern mechanical excellence . Key specifications: 37mm stainless steel case; 11.2mm thickness; 20mm lug width; matte black dial with gilt-toned markers and hands; Manufacture Calibre MT5400 (COSC); 70-hour power reserve; 27 jewels; 28,800 vph; 200m water resistance; black rubber strap with folding clasp; domed sapphire crystal; unidirectional bezel with black aluminium insert.
