Tudor Black Bay 54 vs Tudor Black Bay
Ref. M79000N-0001 vs Ref. M79230B-0008
The Tudor Black Bay 54 and Tudor Black Bay both carry the Tudor name but serve different purposes — the Tudor Black Bay 54 as a dive watch and the Tudor Black Bay as a dive watch. At $4,275 and $4,100 respectively, the question isn't which is better — it's which better fits your collection and investment goals.
Price Comparison
Tudor
Black Bay 54
Tudor
Black Bay
At retail, the Tudor Black Bay 54 is listed at $4,275 while the Tudor Black Bay comes in at $4,100. The two watches are priced within $175 of each other, making this a near-even matchup in terms of cost. On the secondary market, the gap widens: the Tudor Black Bay 54 trades around $3,500 and the Tudor Black Bay around $3,690, a difference of $190 favoring the Tudor Black Bay 54. Available at 18% below retail and trending downward, this represents a buying opportunity for those comfortable with the current market position. The Tudor Black Bay commands an even stronger market premium of -10.0%, holding steady. Both watches score equally on flip potential at 2/10, making neither a clear investment winner over the other.
Specifications
| Specification | Tudor Black Bay 54 | Tudor Black Bay |
|---|---|---|
| Case Diameter | 37mm | 41mm |
| Case Thickness | 11.2mm | 12.7mm |
| Case Material | Stainless steel | Stainless steel |
| Bezel | Unidirectional rotating bezel with anodized aluminium insert in black | Unidirectional rotating bezel with anodized aluminium insert in blue |
| Crystal | Domed sapphire crystal | Domed sapphire crystal |
| Water Resistance | 200m / 660ft | 200m / 660ft |
| Movement | Tudor Calibre MT5400 | Tudor Calibre MT5602 |
| Movement Type | Automatic | Automatic |
| Power Reserve | 70 hours | 70 hours |
| Bracelet/Strap | Stainless steel with riveted-style links | Stainless steel with riveted-style links |
| Clasp | Folding clasp with safety catch | Folding clasp with safety catch and micro-adjustment |
| Lug Width | 19mm | 22mm |
Key specification differences stand out between these two: the Tudor Black Bay 54 features 37mm for case diameter compared to the Tudor Black Bay's 41mm. With 3 notable spec differences in total, the choice depends on which features matter most to your use case.
Value Per Feature
Per millimeter of case diameter, the Tudor Black Bay 54 costs $95 versus $90 for the Tudor Black Bay. For water resistance, the Tudor Black Bay 54 delivers better value per meter of depth rating. The Tudor Black Bay 54 offers more power reserve per dollar spent.
Which Should You Buy?
Choose the Tudor Black Bay 54 if you value serious diving capabilities. Go with the Tudor Black Bay if you prioritize a lower entry price, better value retention, serious diving capabilities.
Frequently Asked Questions
Which is more affordable, the Tudor Black Bay 54 or the Tudor Black Bay?
The Tudor Black Bay is more accessible, priced at $4,100 compared to $4,275.
Which holds its value better on the secondary market?
The Tudor Black Bay currently trades at 10.0% below retail, indicating moderate value retention on the pre-owned market.
How do the Tudor Black Bay 54 and Tudor Black Bay compare in size?
The Tudor Black Bay 54 measures 37mm in diameter and 11.2mm thick, while the Tudor Black Bay is 41mm by 12.7mm.
What movements do these watches use?
The Tudor Black Bay 54 uses the Tudor Calibre MT5400 with 70 hours power reserve, while the Tudor Black Bay runs on the Tudor Calibre MT5602 offering 70 hours of power reserve.

