Omega Seamaster 300 vs Tudor Black Bay GMT S&G
Ref. 234.30.41.21.01.001 vs Ref. M79833MN-0001
The Omega Seamaster 300 (dive watch) and Tudor Black Bay GMT S&G (gmt / travel watch) represent different approaches to luxury watchmaking. While the Omega Seamaster 300 is priced at $6,400 and the Tudor Black Bay GMT S&G at $5,825, both offer compelling value propositions. This comparison examines their specifications, market positioning, and investment potential side by side.
Price Comparison
Omega
Seamaster 300
Tudor
Black Bay GMT S&G
At retail, the Omega Seamaster 300 is listed at $6,400 while the Tudor Black Bay GMT S&G comes in at $5,825. The Tudor Black Bay GMT S&G saves you $575 (10% less), a meaningful difference for most buyers. On the secondary market, the gap narrows: the Omega Seamaster 300 trades around $5,120 and the Tudor Black Bay GMT S&G around $5,243, a difference of $123 favoring the Omega Seamaster 300. Available at 20% 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 Seamaster 300 | Tudor Black Bay GMT S&G |
|---|---|---|
| Case Diameter | 41mm | 41mm |
| Case Thickness | 13.85mm | 14.8mm |
| Case Material | Stainless steel | Stainless steel and yellow gold |
| Bezel | Black ceramic unidirectional rotating bezel with liquidmetal diving scale | Bidirectional rotating bezel with anodized aluminium insert in brown and black |
| Crystal | Domed sapphire crystal with anti-reflective treatment | Sapphire crystal |
| Water Resistance | 300m / 1000ft | 200m / 660ft |
| Movement | Omega Co-Axial Master Chronometer calibre 8912 | Tudor Calibre MT5652 |
| Movement Type | Automatic | Automatic |
| Power Reserve | 55 hours | 70 hours |
| Bracelet/Strap | Stainless steel bracelet | Stainless steel and yellow gold with riveted-style links |
| Clasp | Adjustable clasp | Folding clasp with safety catch |
| Lug Width | 20mm | 22mm |
Key specification differences stand out between these two: The Omega Seamaster 300 leads in water resistance (300m / 1000ft vs. 200m / 660ft), and the Tudor Black Bay GMT S&G offers longer power reserve at 70 hours, and the Omega Seamaster 300 uses Stainless steel while the Tudor Black Bay GMT S&G opts for Stainless steel and yellow gold. 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 Seamaster 300 costs $125 versus $128 for the Tudor Black Bay GMT S&G. For water resistance, the Omega Seamaster 300 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 Seamaster 300 if you value serious diving capabilities. 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 Seamaster 300 or the Tudor Black Bay GMT S&G?
The Tudor Black Bay GMT S&G is more accessible, priced at $5,825 compared to $6,400.
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 Seamaster 300 and Tudor Black Bay GMT S&G compare in size?
The Omega Seamaster 300 measures 41mm in diameter and 13.85mm thick, while the Tudor Black Bay GMT S&G is 41mm by 14.8mm. Water resistance differs too: 300m / 1000ft versus 200m / 660ft.
What movements do these watches use?
The Omega Seamaster 300 uses the Omega Co-Axial Master Chronometer calibre 8912 with 55 hours power reserve, while the Tudor Black Bay GMT S&G runs on the Tudor Calibre MT5652 offering 70 hours of power reserve.