Omega Seamaster Planet Ocean Ultra Deep vs Rolex Datejust 31
Ref. 215.30.46.21.01.001 vs Ref. M278271-0006
The Omega Seamaster Planet Ocean Ultra Deep (dive watch) and Rolex Datejust 31 (dress watch) represent different approaches to luxury watchmaking. While the Omega Seamaster Planet Ocean Ultra Deep is priced at $11,400 and the Rolex Datejust 31 at $14,300, both offer compelling value propositions. This comparison examines their specifications, market positioning, and investment potential side by side.
Price Comparison
Omega
Seamaster Planet Ocean Ultra Deep
Rolex
Datejust 31
At retail, the Omega Seamaster Planet Ocean Ultra Deep is listed at $11,400 while the Rolex Datejust 31 comes in at $14,300. The Omega Seamaster Planet Ocean Ultra Deep saves you $2,900 (25% less), a meaningful difference for most buyers. On the secondary market, the gap widens: the Omega Seamaster Planet Ocean Ultra Deep trades around $9,120 and the Rolex Datejust 31 around $13,585, a difference of $4,465 favoring the Omega Seamaster Planet Ocean Ultra Deep. Available at 20% below retail and trending downward, this represents a buying opportunity for those comfortable with the current market position. The Rolex Datejust 31 commands an even stronger market premium of -5.0%, holding steady. For investors, the Rolex Datejust 31 edges ahead with a flip potential score of 4/10 compared to 2/10.
Specifications
| Specification | Omega Seamaster Planet Ocean Ultra Deep | Rolex Datejust 31 |
|---|---|---|
| Case Diameter | 45.5mm | 31mm |
| Case Thickness | 18.12mm | 11.3mm |
| Case Material | Stainless steel (O-MEGASTEEL) | Oystersteel and 18ct Everose gold |
| Bezel | Black ceramic unidirectional rotating bezel with liquidmetal diving scale | 18ct Everose gold, fluted |
| Crystal | Sapphire crystal with anti-reflective treatment | Sapphire with Cyclops lens |
| Water Resistance | 6000m / 19685ft | 100m / 330ft |
| Movement | Omega Co-Axial Master Chronometer calibre 8912 | Rolex calibre 2236 |
| Movement Type | Automatic | Automatic |
| Power Reserve | 55 hours | 55 hours |
| Bracelet/Strap | Stainless steel bracelet (O-MEGASTEEL) | Jubilee, five-piece links in Oystersteel and 18ct Everose gold |
| Clasp | Folding clasp with diver extension | Oysterclasp with Easylink 5mm comfort extension |
| Lug Width | 22mm | 16mm |
Key specification differences stand out between these two: The Omega Seamaster Planet Ocean Ultra Deep leads in water resistance (6000m / 19685ft vs. 100m / 330ft), and the Omega Seamaster Planet Ocean Ultra Deep uses Stainless steel (O-MEGASTEEL) while the Rolex Datejust 31 opts for Oystersteel and 18ct Everose 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 Planet Ocean Ultra Deep costs $200 versus $438 for the Rolex Datejust 31. For water resistance, the Omega Seamaster Planet Ocean Ultra Deep delivers better value per meter of depth rating. The Omega Seamaster Planet Ocean Ultra Deep offers more power reserve per dollar spent.
Which Should You Buy?
Choose the Omega Seamaster Planet Ocean Ultra Deep if you value a lower entry price, serious diving capabilities. Go with the Rolex Datejust 31 if you prioritize stronger flip potential, better value retention. For pure investment potential, the Rolex Datejust 31 has the edge based on current market data.
Frequently Asked Questions
Which is more affordable, the Omega Seamaster Planet Ocean Ultra Deep or the Rolex Datejust 31?
The Omega Seamaster Planet Ocean Ultra Deep is more accessible, priced at $11,400 compared to $14,300.
Which watch is a better investment?
Based on current market data, the Rolex Datejust 31 has a higher flip potential score of 4/10, suggesting stronger investment returns. However, watch values can fluctuate based on market conditions.
Which holds its value better on the secondary market?
The Rolex Datejust 31 currently trades at 5.0% below retail, indicating moderate value retention on the pre-owned market.
How do the Omega Seamaster Planet Ocean Ultra Deep and Rolex Datejust 31 compare in size?
The Omega Seamaster Planet Ocean Ultra Deep measures 45.5mm in diameter and 18.12mm thick, while the Rolex Datejust 31 is 31mm by 11.3mm. Water resistance differs too: 6000m / 19685ft versus 100m / 330ft.
What movements do these watches use?
The Omega Seamaster Planet Ocean Ultra Deep uses the Omega Co-Axial Master Chronometer calibre 8912 with 55 hours power reserve, while the Rolex Datejust 31 runs on the Rolex calibre 2236 offering 55 hours of power reserve.
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