Omega Seamaster Planet Ocean 600M vs Tudor Black Bay 58 Bronze
Ref. 215.32.44.21.01.001 vs Ref. M79012M-0001
In the dive watch category, the Omega Seamaster Planet Ocean 600M and Tudor Black Bay 58 Bronze go head to head — two of the most sought-after options from rival manufacturers. The Omega Seamaster Planet Ocean 600M at $6,900 and the Tudor Black Bay 58 Bronze at $4,575 each bring unique strengths. Here's our detailed breakdown of how they compare on specs, pricing, and market value.
Price Comparison
Omega
Seamaster Planet Ocean 600M
Tudor
Black Bay 58 Bronze
At retail, the Omega Seamaster Planet Ocean 600M is listed at $6,900 while the Tudor Black Bay 58 Bronze comes in at $4,575. At $2,325 less (51% savings), the Tudor Black Bay 58 Bronze offers a substantially lower entry point. On the secondary market, the gap narrows: the Omega Seamaster Planet Ocean 600M trades around $5,520 and the Tudor Black Bay 58 Bronze around $4,200, a difference of $1,320 favoring the Tudor Black Bay 58 Bronze. 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 Bronze commands an even stronger market premium of -8.2%, 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 Planet Ocean 600M | Tudor Black Bay 58 Bronze |
|---|---|---|
| Case Diameter | 43.5mm | 39mm |
| Case Thickness | 14.41mm | 11.9mm |
| Case Material | Stainless steel | Aluminum bronze alloy |
| Bezel | Black ceramic unidirectional rotating bezel with diving scale | Unidirectional rotating bezel with aluminum bronze insert |
| Crystal | Domed sapphire crystal with anti-reflective treatment | Sapphire crystal |
| Water Resistance | 600m / 2000ft | 200m / 660ft |
| Movement | Omega Co-Axial Master Chronometer calibre 8900 | Tudor Calibre MT5400 |
| Movement Type | Automatic | Automatic |
| Power Reserve | 55 hours | 70 hours |
| Bracelet/Strap | Black rubber strap | Brown leather strap with bronze buckle |
| Clasp | Steel buckle | Pin buckle in bronze |
| Lug Width | 21mm | 20mm |
Key specification differences stand out between these two: The Omega Seamaster Planet Ocean 600M leads in water resistance (600m / 2000ft vs. 200m / 660ft), and the Tudor Black Bay 58 Bronze offers longer power reserve at 70 hours, and the Omega Seamaster Planet Ocean 600M uses Stainless steel while the Tudor Black Bay 58 Bronze opts for Aluminum bronze alloy. 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 Planet Ocean 600M costs $127 versus $108 for the Tudor Black Bay 58 Bronze. For water resistance, the Omega Seamaster Planet Ocean 600M delivers better value per meter of depth rating. The Tudor Black Bay 58 Bronze offers more power reserve per dollar spent.
Which Should You Buy?
Choose the Omega Seamaster Planet Ocean 600M if you value serious diving capabilities. Go with the Tudor Black Bay 58 Bronze if you prioritize a lower entry price, better value retention, serious diving capabilities.
Frequently Asked Questions
Which is more affordable, the Omega Seamaster Planet Ocean 600M or the Tudor Black Bay 58 Bronze?
The Tudor Black Bay 58 Bronze is more accessible, priced at $4,575 compared to $6,900.
Which holds its value better on the secondary market?
The Tudor Black Bay 58 Bronze currently trades at 8.2% below retail, indicating moderate value retention on the pre-owned market.
How do the Omega Seamaster Planet Ocean 600M and Tudor Black Bay 58 Bronze compare in size?
The Omega Seamaster Planet Ocean 600M measures 43.5mm in diameter and 14.41mm thick, while the Tudor Black Bay 58 Bronze is 39mm by 11.9mm. Water resistance differs too: 600m / 2000ft versus 200m / 660ft.
What movements do these watches use?
The Omega Seamaster Planet Ocean 600M uses the Omega Co-Axial Master Chronometer calibre 8900 with 55 hours power reserve, while the Tudor Black Bay 58 Bronze runs on the Tudor Calibre MT5400 offering 70 hours of power reserve.
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