Omega Seamaster Diver 300M vs Tudor Black Bay 58 S&G
Ref. 210.22.42.20.01.002 vs Ref. M79010SG-0001
In the dive watch category, the Omega Seamaster Diver 300M and Tudor Black Bay 58 S&G go head to head — two of the most sought-after options from rival manufacturers. The Omega Seamaster Diver 300M at $8,700 and the Tudor Black Bay 58 S&G at $5,525 each bring unique strengths. Here's our detailed breakdown of how they compare on specs, pricing, and market value.
Price Comparison
Omega
Seamaster Diver 300M
Tudor
Black Bay 58 S&G
At retail, the Omega Seamaster Diver 300M is listed at $8,700 while the Tudor Black Bay 58 S&G comes in at $5,525. At $3,175 less (57% savings), the Tudor Black Bay 58 S&G offers a substantially lower entry point. On the secondary market, the gap narrows: the Omega Seamaster Diver 300M trades around $6,960 and the Tudor Black Bay 58 S&G around $5,525, a difference of $1,435 favoring the Tudor Black Bay 58 S&G. 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 58 S&G commands an even stronger market premium of 0.0%, holding steady. For investors, the Tudor Black Bay 58 S&G edges ahead with a flip potential score of 3/10 compared to 2/10.
Specifications
| Specification | Omega Seamaster Diver 300M | Tudor Black Bay 58 S&G |
|---|---|---|
| Case Diameter | 42mm | 39mm |
| Case Thickness | 13.56mm | 11.9mm |
| Case Material | Stainless steel and 18K Sedna gold | Stainless steel and yellow gold |
| Bezel | Black ceramic and Sedna gold unidirectional rotating bezel | Unidirectional rotating bezel with anodized aluminium insert in brown |
| Crystal | Domed sapphire crystal with anti-reflective treatment | Sapphire crystal |
| Water Resistance | 300m / 1000ft | 200m / 660ft |
| Movement | Omega Co-Axial Master Chronometer calibre 8800 | Tudor Calibre MT5402 |
| Movement Type | Automatic | Automatic |
| Power Reserve | 55 hours | 70 hours |
| Bracelet/Strap | Stainless steel and Sedna gold bracelet | Stainless steel and yellow gold with riveted-style links |
| Clasp | Folding clasp with diver extension | Folding clasp with safety catch |
| Lug Width | 20mm | 20mm |
Key specification differences stand out between these two: The Omega Seamaster Diver 300M leads in water resistance (300m / 1000ft vs. 200m / 660ft), and the Tudor Black Bay 58 S&G offers longer power reserve at 70 hours, and the Omega Seamaster Diver 300M uses Stainless steel and 18K Sedna gold while the Tudor Black Bay 58 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 Seamaster Diver 300M costs $166 versus $142 for the Tudor Black Bay 58 S&G. For water resistance, the Omega Seamaster Diver 300M delivers better value per meter of depth rating. The Tudor Black Bay 58 S&G offers more power reserve per dollar spent.
Which Should You Buy?
Choose the Omega Seamaster Diver 300M if you value serious diving capabilities. Go with the Tudor Black Bay 58 S&G if you prioritize a lower entry price, stronger flip potential, better value retention. For pure investment potential, the Tudor Black Bay 58 S&G has the edge based on current market data.
Frequently Asked Questions
Which is more affordable, the Omega Seamaster Diver 300M or the Tudor Black Bay 58 S&G?
The Tudor Black Bay 58 S&G is more accessible, priced at $5,525 compared to $8,700.
Which watch is a better investment?
Based on current market data, the Tudor Black Bay 58 S&G has a higher flip potential score of 3/10, suggesting stronger investment returns. However, watch values can fluctuate based on market conditions.
Which holds its value better on the secondary market?
The Tudor Black Bay 58 S&G currently trades at 0.0% below retail, indicating moderate value retention on the pre-owned market.
How do the Omega Seamaster Diver 300M and Tudor Black Bay 58 S&G compare in size?
The Omega Seamaster Diver 300M measures 42mm in diameter and 13.56mm thick, while the Tudor Black Bay 58 S&G is 39mm by 11.9mm. Water resistance differs too: 300m / 1000ft versus 200m / 660ft.
What movements do these watches use?
The Omega Seamaster Diver 300M uses the Omega Co-Axial Master Chronometer calibre 8800 with 55 hours power reserve, while the Tudor Black Bay 58 S&G runs on the Tudor Calibre MT5402 offering 70 hours of power reserve.

