Anyone who wants a Submariner sooner or later asks: what about the Black Bay? The two dive watches share more than looks — Tudor was created by Rolex founder Hans Wilsdorf to offer Rolex quality at a lower price. Today they are two independent watches with their own character. This comparison shows where the differences really lie.
Shared roots, separate paths
Early Tudor dive watches used Rolex cases and crowns with bought-in movements. The Black Bay appeared in 2012 as a homage to those early Tudor divers, with a large crown without crown guards and the distinctive “Snowflake” hands. Since 2016, the Black Bay has been powered by Tudor’s own in-house movement. The Submariner has been in the catalogue since 1953 and its design language has remained largely unchanged.
The differences in detail
- Case: the current Submariner measures 41 mm and has crown guards. The Black Bay comes in 41 mm, as the Black Bay 58 in 39 mm and as the Black Bay 54 in 37 mm — without crown guards, with a prominent crown.
- Bezel: the Submariner has a scratch-resistant ceramic insert, the Black Bay classic aluminium that picks up wear and patina over time.
- Water resistance: 300 m for the Submariner, 200 m for the Black Bay. For anything short of professional diving, both are more than enough.
- Movement: both use in-house automatic movements with around 70 hours of power reserve and chronometer certification. Rolex additionally tests its watches to its own, tighter standard.
- Finishing: the Submariner is more finely finished, especially the bracelet and clasp. The Black Bay feels deliberately a little more rugged — for many, that is its appeal.
Price and value retention
The Submariner costs several times as much as the Black Bay, new or pre-owned. In return, it has historically been far more value-stable on the secondary market: sought-after steel references often trade near or above list price. A Black Bay usually loses value more noticeably after purchase — which in turn makes it an attractive pre-owned buy. Neither comes with a guarantee of future value.
Which one suits whom?
- The Submariner if you want the icon, value retention and finish matter to you, and the budget allows.
- The Black Bay if you like vintage character, want to wear a watch without worrying about the odd knock.
- The Black Bay 58 or 54 if your wrist is on the slimmer side — both wear considerably smaller than any current Submariner.
- Both in turn: many collectors start with the Black Bay and later end up with the Submariner — or keep both.
Conclusion
The Submariner is the original with the finer finish and stronger value retention; the Black Bay is the characterful, more accessible alternative with the same roots. It is hard to make a wrong choice here. On Bestwrist you will find both from verified dealers — with escrow payment and buyer protection.