Editorial
The Black Bay 58 (ref. 79030N in the navy-dial form) is the watch that more first-time serious-watch buyers land on than any other reference in the modern catalog. 39mm, 12.7mm thick including the domed crystal, riveted snowflake-hands, an in-house caliber with 70 hours of reserve, and a list price that, when you can find one, sits comfortably below the Submariner-with-date variants it most resembles. It's the answer to 'what's the right first watch?' more often than it isn't.
Tudor launched the Black Bay line in 2012 (the 'burgundy' 79220R) as the modern revival of Tudor's mid-century dive references, the 7922, the 7924 'Big Crown,' and the 1958 ref. 7924 specifically. The Black Bay Fifty-Eight (BB58) arrived in 2018 with the smaller 39mm case, sized to the 1958 original, paired with the new MT5402, a Tudor in-house caliber with a free-sprung balance, silicon hairspring, and 70-hour reserve. The navy variant (79030N) followed in 2020.
The line has expanded into bronze, silver, GMT, and 925-silver variants, but the steel navy 39mm remains the canonical Black Bay 58.
Common things to check: bracelet (Tudor ships several strap options factory, rubber, fabric, riveted-leather, and a steel five-link bracelet, verify which is included against the box contents and price accordingly); bezel (the matte-bronze 60-click bezel is part of the watch's visual signature, but it scratches, light wear is fine, deep dents that compromise the click action are a service item); crown gasket (BB58s with worn crown seals do not stay water-resistant; service is straightforward but should be priced in); the MT5400 family movement is robust but a previously-serviced example with paperwork from a Tudor service center is worth real money on top.