Tudor Black Bay 58 Guide: 79030N Specs, MT5402, Prices | Ultimate Watch

The Tudor Black Bay 58 is the watch that fixed the one complaint people had about the original Black Bay: size. When Tudor launched it at Baselworld in 2018 as reference 79030N, they took the 41mm Black Bay down to a 39mm case, dropped the thickness from nearly 15mm to 11.9mm, and narrowed the lugs from 22mm to 20mm. The result wears like a vintage 1950s diver because that is exactly what it references: the Tudor Submariner reference 7924 from 1958, the first Tudor rated to 200 meters, nicknamed the Big Crown. We buy and sell these every week on 47th Street, and it is one of the easiest steel sports watches to move because collectors actually want to wear it, not just flip it. The 58 is where the modern Tudor story gets serious: an in-house COSC-certified movement, a 70-hour power reserve, gilt accents, and a price of entry that still sits under most Swiss dive watches with a manufacture caliber. If you want one watch that does dress-casual, weekend, and pool duty without looking like a tool watch bolted to your wrist, this is the reference to understand.