Omega Seamaster Planet Ocean Ultra Deep
Ref. 215.30.46.21.01.001
Rolex Lady-Datejust
Ref. M279135RBR-0001
Omega Seamaster Planet Ocean Ultra Deep vs Rolex Lady-Datejust
Ref. 215.30.46.21.01.001 vs Ref. M279135RBR-0001
Comparing the Omega Seamaster Planet Ocean Ultra Deep to the Rolex Lady-Datejust means weighing a significant price difference — is the premium justified? At $11,400 versus $35,150, these two watches serve different segments of the market. Here's how they stack up on specifications, value retention, and investment potential.
Price Comparison
Omega
Seamaster Planet Ocean Ultra Deep
Rolex
Lady-Datejust
At retail, the Omega Seamaster Planet Ocean Ultra Deep is listed at $11,400 while the Rolex Lady-Datejust comes in at $35,150. The Omega Seamaster Planet Ocean Ultra Deep comes in at $23,750 less — more than half the price difference — making it a significantly more accessible option. On the secondary market, the gap widens: the Omega Seamaster Planet Ocean Ultra Deep trades around $9,120 and the Rolex Lady-Datejust around $33,393, a difference of $24,273 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 Lady-Datejust commands an even stronger market premium of -5.0%, holding steady. For investors, the Rolex Lady-Datejust edges ahead with a flip potential score of 4/10 compared to 2/10.
Specifications
| Specification | Omega Seamaster Planet Ocean Ultra Deep | Rolex Lady-Datejust |
|---|---|---|
| Case Diameter | 45.5mm | 28mm |
| Case Thickness | 18.12mm | 10.1mm |
| Case Material | Stainless steel (O-MEGASTEEL) | 18ct Everose gold |
| Bezel | Black ceramic unidirectional rotating bezel with liquidmetal diving scale | 18ct Everose gold, set with diamonds |
| 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) | President, three-piece semi-circular links in 18ct Everose gold |
| Clasp | Folding clasp with diver extension | Concealed folding Crownclasp |
| Lug Width | 22mm | 14mm |
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 Lady-Datejust opts for 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 $1,193 for the Rolex Lady-Datejust. 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 Lady-Datejust if you prioritize stronger flip potential, better value retention. For pure investment potential, the Rolex Lady-Datejust 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 Lady-Datejust?
The Omega Seamaster Planet Ocean Ultra Deep is more accessible, priced at $11,400 compared to $35,150.
Which watch is a better investment?
Based on current market data, the Rolex Lady-Datejust 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 Lady-Datejust 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 Lady-Datejust compare in size?
The Omega Seamaster Planet Ocean Ultra Deep measures 45.5mm in diameter and 18.12mm thick, while the Rolex Lady-Datejust is 28mm by 10.1mm. 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 Lady-Datejust runs on the Rolex calibre 2236 offering 55 hours of power reserve.
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