Tudor Black Bay GMT vs Tudor Black Bay
Ref. M79830RB-0001 vs Ref. M79230N-0009
The Tudor Black Bay GMT and Tudor Black Bay both carry the Tudor name but serve different purposes — the Tudor Black Bay GMT as a gmt / travel watch and the Tudor Black Bay as a dive watch. At $4,600 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 GMT
Tudor
Black Bay
At retail, the Tudor Black Bay GMT is listed at $4,600 while the Tudor Black Bay comes in at $4,100. The Tudor Black Bay saves you $500 (12% less), a meaningful difference for most buyers. On the secondary market, the gap narrows: the Tudor Black Bay GMT trades around $3,800 and the Tudor Black Bay around $3,690, a difference of $110 favoring the Tudor Black Bay. Available at 17% 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 GMT | Tudor Black Bay |
|---|---|---|
| Case Diameter | 41mm | 41mm |
| Case Thickness | 14.8mm | 12.7mm |
| Case Material | Stainless steel | Stainless steel |
| Bezel | Bidirectional rotating bezel with anodized aluminium insert in burgundy and blue | Unidirectional rotating bezel with anodized aluminium insert in black |
| Crystal | Sapphire crystal | Domed sapphire crystal |
| Water Resistance | 200m / 660ft | 200m / 660ft |
| Movement | Tudor Calibre MT5652 | 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 | 22mm | 22mm |
Key specification differences stand out between these two: the Tudor Black Bay GMT features 14.8mm for case thickness compared to the Tudor Black Bay's 12.7mm. 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 GMT costs $93 versus $90 for the Tudor Black Bay. For water resistance, the Tudor Black Bay delivers better value per meter of depth rating. The Tudor Black Bay offers more power reserve per dollar spent.
Which Should You Buy?
Choose the Tudor Black Bay GMT if you value the Tudor heritage. 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 GMT or the Tudor Black Bay?
The Tudor Black Bay is more accessible, priced at $4,100 compared to $4,600.
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 GMT and Tudor Black Bay compare in size?
The Tudor Black Bay GMT measures 41mm in diameter and 14.8mm thick, while the Tudor Black Bay is 41mm by 12.7mm.
What movements do these watches use?
The Tudor Black Bay GMT uses the Tudor Calibre MT5652 with 70 hours power reserve, while the Tudor Black Bay runs on the Tudor Calibre MT5602 offering 70 hours of power reserve.