Omega Speedmaster '57 vs Tudor Black Bay GMT
Ref. 332.12.41.51.01.001 vs Ref. M79830RB-0010
Comparing the Tudor Black Bay GMT to the Omega Speedmaster '57 means weighing a significant price difference — is the premium justified? At $8,700 versus $4,150, these two watches serve different segments of the market. Here's how they stack up on specifications, value retention, and investment potential.
Price Comparison
Omega
Speedmaster '57
Tudor
Black Bay GMT
At retail, the Omega Speedmaster '57 is listed at $8,700 while the Tudor Black Bay GMT comes in at $4,150. The Tudor Black Bay GMT comes in at $4,550 less — more than half the price difference — making it a significantly more accessible option. On the secondary market, the gap narrows: the Omega Speedmaster '57 trades around $7,395 and the Tudor Black Bay GMT around $3,735, a difference of $3,660 favoring the Tudor Black Bay GMT. Available at 15% below retail and trending downward, this represents a buying opportunity for those comfortable with the current market position. The Tudor Black Bay GMT 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 | Omega Speedmaster '57 | Tudor Black Bay GMT |
|---|---|---|
| Case Diameter | 40.5mm | 41mm |
| Case Thickness | 12.99mm | 14.8mm |
| Case Material | Stainless steel | Stainless steel |
| Bezel | Stainless steel bezel with tachymetre scale | Bidirectional rotating bezel with anodized aluminium insert in burgundy and blue |
| Crystal | Sapphire crystal front and caseback | Sapphire crystal |
| Water Resistance | 50m / 167ft | 200m / 660ft |
| Movement | Omega Co-Axial Master Chronometer calibre 9906 | Tudor Calibre MT5652 |
| Movement Type | Automatic | Automatic |
| Power Reserve | 60 hours | 70 hours |
| Bracelet/Strap | Brown leather strap | Fabric NATO strap in burgundy and blue |
| Clasp | Steel buckle | Buckle |
| Lug Width | 21mm | 22mm |
Key specification differences stand out between these two: The Tudor Black Bay GMT leads in water resistance (200m / 660ft vs. 50m / 167ft), and the Tudor Black Bay GMT offers longer power reserve at 70 hours. With 7 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 Omega Speedmaster '57 costs $183 versus $91 for the Tudor Black Bay GMT. For water resistance, the Tudor Black Bay GMT delivers better value per meter of depth rating. The Tudor Black Bay GMT offers more power reserve per dollar spent.
Which Should You Buy?
Choose the Omega Speedmaster '57 if you value timing functionality. Go with the Tudor Black Bay GMT if you prioritize a lower entry price, better value retention.
Frequently Asked Questions
Which is more affordable, the Omega Speedmaster '57 or the Tudor Black Bay GMT?
The Tudor Black Bay GMT is more accessible, priced at $4,150 compared to $8,700.
Which holds its value better on the secondary market?
The Tudor Black Bay GMT currently trades at 10.0% below retail, indicating moderate value retention on the pre-owned market.
How do the Omega Speedmaster '57 and Tudor Black Bay GMT compare in size?
The Omega Speedmaster '57 measures 40.5mm in diameter and 12.99mm thick, while the Tudor Black Bay GMT is 41mm by 14.8mm. Water resistance differs too: 50m / 167ft versus 200m / 660ft.
What movements do these watches use?
The Omega Speedmaster '57 uses the Omega Co-Axial Master Chronometer calibre 9906 with 60 hours power reserve, while the Tudor Black Bay GMT runs on the Tudor Calibre MT5652 offering 70 hours of power reserve.