Omega Speedmaster Moonwatch Professional
Ref. 310.63.42.50.01.001
Tudor Black Bay GMT S&G
Ref. M79833MN-0001
Omega Speedmaster Moonwatch Professional vs Tudor Black Bay GMT S&G
Ref. 310.63.42.50.01.001 vs Ref. M79833MN-0001
Comparing the Tudor Black Bay GMT S&G to the Omega Speedmaster Moonwatch Professional means weighing a significant price difference — is the premium justified? At $29,600 versus $5,825, 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 S&G
At retail, the Omega Speedmaster Moonwatch Professional is listed at $29,600 while the Tudor Black Bay GMT S&G comes in at $5,825. The Tudor Black Bay GMT S&G comes in at $23,775 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 $25,160 and the Tudor Black Bay GMT S&G around $5,243, a difference of $19,917 favoring the Tudor Black Bay GMT S&G. 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 S&G 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 S&G |
|---|---|---|
| Case Diameter | 42mm | 41mm |
| Case Thickness | 13.18mm | 14.8mm |
| Case Material | 18K Sedna gold | Stainless steel and yellow gold |
| Bezel | Sedna gold bezel ring with tachymetre scale | Bidirectional rotating bezel with anodized aluminium insert in brown and black |
| 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 | Brown leather strap | Stainless steel and yellow gold with riveted-style links |
| Clasp | Sedna gold buckle | Folding clasp with safety catch |
| Lug Width | 20mm | 22mm |
Key specification differences stand out between these two: The Tudor Black Bay GMT S&G leads in water resistance (200m / 660ft vs. 50m / 167ft), and the Tudor Black Bay GMT S&G offers longer power reserve at 70 hours, and the Omega Speedmaster Moonwatch Professional uses 18K Sedna gold while the Tudor Black Bay GMT S&G opts for Stainless steel and yellow gold. 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 $599 versus $128 for the Tudor Black Bay GMT S&G. For water resistance, the Tudor Black Bay GMT S&G delivers better value per meter of depth rating. The Tudor Black Bay GMT S&G 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 S&G 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 S&G?
The Tudor Black Bay GMT S&G is more accessible, priced at $5,825 compared to $29,600.
Which holds its value better on the secondary market?
The Tudor Black Bay GMT S&G 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 S&G compare in size?
The Omega Speedmaster Moonwatch Professional measures 42mm in diameter and 13.18mm thick, while the Tudor Black Bay GMT S&G 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 S&G runs on the Tudor Calibre MT5652 offering 70 hours of power reserve.
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