Omega Speedmaster Moonwatch Professional
Ref. 310.20.42.50.99.001
Tudor Black Bay GMT
Ref. M79830RB-0010
Omega Speedmaster Moonwatch Professional vs Tudor Black Bay GMT
Ref. 310.20.42.50.99.001 vs Ref. M79830RB-0010
Comparing the Tudor Black Bay GMT to the Omega Speedmaster Moonwatch Professional means weighing a significant price difference — is the premium justified? At $11,400 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 Moonwatch Professional
Tudor
Black Bay GMT
At retail, the Omega Speedmaster Moonwatch Professional is listed at $11,400 while the Tudor Black Bay GMT comes in at $4,150. The Tudor Black Bay GMT comes in at $7,250 less — more than half the price difference — making it a significantly more accessible option. On the secondary market, the gap narrows: the Omega Speedmaster Moonwatch Professional trades around $9,690 and the Tudor Black Bay GMT around $3,735, a difference of $5,955 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 Moonwatch Professional | Tudor Black Bay GMT |
|---|---|---|
| Case Diameter | 42mm | 41mm |
| Case Thickness | 13.18mm | 14.8mm |
| Case Material | Stainless steel and Sedna gold | Stainless steel |
| Bezel | Sedna gold bezel ring 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 3861 | Tudor Calibre MT5652 |
| Movement Type | Manual-winding | Automatic |
| Power Reserve | 50 hours | 70 hours |
| Bracelet/Strap | Stainless steel and Sedna gold bracelet | Fabric NATO strap in burgundy and blue |
| Clasp | Adjustable clasp | Buckle |
| Lug Width | 20mm | 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, and the Omega Speedmaster Moonwatch Professional uses Stainless steel and Sedna gold while the Tudor Black Bay GMT opts for Stainless steel. With 8 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 Moonwatch Professional costs $231 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 Moonwatch Professional 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 Moonwatch Professional or the Tudor Black Bay GMT?
The Tudor Black Bay GMT is more accessible, priced at $4,150 compared to $11,400.
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 Moonwatch Professional and Tudor Black Bay GMT compare in size?
The Omega Speedmaster Moonwatch Professional measures 42mm in diameter and 13.18mm 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 Moonwatch Professional uses the Omega Co-Axial Master Chronometer calibre 3861 with 50 hours power reserve, while the Tudor Black Bay GMT runs on the Tudor Calibre MT5652 offering 70 hours of power reserve.
Related Comparisons
Omega Speedmaster Moonwatch Professional
vs Rolex Cosmograph Daytona
Omega Speedmaster Moonwatch Professional
vs Rolex Cosmograph Daytona
Omega Speedmaster Moonwatch Professional
vs Rolex Cosmograph Daytona
Rolex GMT-Master II
vs Tudor Black Bay GMT
Rolex GMT-Master II
vs Tudor Black Bay GMT
Rolex GMT-Master II
vs Tudor Black Bay GMT