Omega Seamaster Planet Ocean 600M vs Tudor Black Bay Chrono
Ref. 215.30.44.21.01.001 vs Ref. M79360N-0002
The Omega Seamaster Planet Ocean 600M (dive watch) and Tudor Black Bay Chrono (chronograph) represent different approaches to luxury watchmaking. While the Omega Seamaster Planet Ocean 600M is priced at $7,300 and the Tudor Black Bay Chrono 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 Planet Ocean 600M
Tudor
Black Bay Chrono
At retail, the Omega Seamaster Planet Ocean 600M is listed at $7,300 while the Tudor Black Bay Chrono comes in at $5,825. The Tudor Black Bay Chrono saves you $1,475 (25% less), a meaningful difference for most buyers. On the secondary market, the gap narrows: the Omega Seamaster Planet Ocean 600M trades around $5,600 and the Tudor Black Bay Chrono around $4,600, a difference of $1,000 favoring the Tudor Black Bay Chrono. Available at 23% below retail and trending downward, this represents a buying opportunity for those comfortable with the current market position. The Tudor Black Bay Chrono commands an even stronger market premium of -21.0%, though currently trending downward. 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 Chrono |
|---|---|---|
| Case Diameter | 43.5mm | 41mm |
| Case Thickness | 14.41mm | 14.4mm |
| Case Material | Stainless steel | Stainless steel |
| Bezel | Black ceramic unidirectional rotating bezel with diving scale | Fixed bezel with tachymeter scale in black |
| 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 MT5813 |
| Movement Type | Automatic | Automatic chronograph |
| Power Reserve | 55 hours | 70 hours |
| Bracelet/Strap | Stainless steel bracelet | Stainless steel with riveted-style links |
| Clasp | Folding clasp with diver extension | Folding clasp with safety catch |
| Lug Width | 21mm | 22mm |
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 Chrono offers longer power reserve at 70 hours. 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 Planet Ocean 600M costs $129 versus $112 for the Tudor Black Bay Chrono. For water resistance, the Omega Seamaster Planet Ocean 600M delivers better value per meter of depth rating. The Tudor Black Bay Chrono 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 Chrono if you prioritize a lower entry price, better value retention, timing functionality.
Frequently Asked Questions
Which is more affordable, the Omega Seamaster Planet Ocean 600M or the Tudor Black Bay Chrono?
The Tudor Black Bay Chrono is more accessible, priced at $5,825 compared to $7,300.
Which holds its value better on the secondary market?
The Tudor Black Bay Chrono currently trades at 21.0% below retail, indicating moderate value retention on the pre-owned market.
How do the Omega Seamaster Planet Ocean 600M and Tudor Black Bay Chrono compare in size?
The Omega Seamaster Planet Ocean 600M measures 43.5mm in diameter and 14.41mm thick, while the Tudor Black Bay Chrono is 41mm by 14.4mm. 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 Chrono runs on the Tudor Calibre MT5813 offering 70 hours of power reserve.
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