Omega Seamaster Aqua Terra 150M vs Tudor Black Bay GMT S&G
Ref. 220.10.41.21.03.004 vs Ref. M79833MN-0003
The Omega Seamaster Aqua Terra 150M (dive watch) and Tudor Black Bay GMT S&G (gmt / travel watch) represent different approaches to luxury watchmaking. While the Omega Seamaster Aqua Terra 150M is priced at $5,700 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 Aqua Terra 150M
Tudor
Black Bay GMT S&G
At retail, the Omega Seamaster Aqua Terra 150M is listed at $5,700 while the Tudor Black Bay GMT S&G comes in at $5,825. The two watches are priced within $125 of each other, making this a near-even matchup in terms of cost. On the secondary market, the gap widens: the Omega Seamaster Aqua Terra 150M trades around $4,200 and the Tudor Black Bay GMT S&G around $5,243, a difference of $1,043 favoring the Omega Seamaster Aqua Terra 150M. Available at 26% 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 Aqua Terra 150M | Tudor Black Bay GMT S&G |
|---|---|---|
| Case Diameter | 41mm | 41mm |
| Case Thickness | 13.2mm | 14.8mm |
| Case Material | Stainless steel | Stainless steel and yellow gold |
| Bezel | Stainless steel bezel | Bidirectional rotating bezel with anodized aluminium insert in brown and black |
| Crystal | Domed sapphire crystal with anti-reflective treatment | Sapphire crystal |
| Water Resistance | 150m / 500ft | 200m / 660ft |
| Movement | Omega Co-Axial Master Chronometer calibre 8900 | 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 | Folding clasp | 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. 150m / 500ft), and the Tudor Black Bay GMT S&G offers longer power reserve at 70 hours, and the Omega Seamaster Aqua Terra 150M 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 Aqua Terra 150M costs $102 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 Seamaster Aqua Terra 150M if you value a lower entry price, serious diving capabilities. Go with the Tudor Black Bay GMT S&G if you prioritize better value retention.
Frequently Asked Questions
Which is more affordable, the Omega Seamaster Aqua Terra 150M or the Tudor Black Bay GMT S&G?
The Omega Seamaster Aqua Terra 150M is more accessible, priced at $5,700 compared to $5,825.
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 Aqua Terra 150M and Tudor Black Bay GMT S&G compare in size?
The Omega Seamaster Aqua Terra 150M measures 41mm in diameter and 13.2mm thick, while the Tudor Black Bay GMT S&G is 41mm by 14.8mm. Water resistance differs too: 150m / 500ft versus 200m / 660ft.
What movements do these watches use?
The Omega Seamaster Aqua Terra 150M uses the Omega Co-Axial Master Chronometer calibre 8900 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.
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