Omega Seamaster Diver 300M
Ref. 210.30.42.20.03.001
Omega Seamaster Planet Ocean Ultra Deep
Ref. 215.30.46.21.01.001
Omega Seamaster Diver 300M vs Omega Seamaster Planet Ocean Ultra Deep
Ref. 210.30.42.20.03.001 vs Ref. 215.30.46.21.01.001
Choosing between the Omega Seamaster Diver 300M (Ref. 210.30.42.20.03.001) and the Omega Seamaster Planet Ocean Ultra Deep (Ref. 215.30.46.21.01.001) comes down to the details — both share the Seamaster DNA but differ in key specifications and market positioning. The Omega Seamaster Diver 300M retails for $5,700 while the Omega Seamaster Planet Ocean Ultra Deep is $11,400. Let's examine which variant offers better value and investment potential.
Price Comparison
Omega
Seamaster Diver 300M
Omega
Seamaster Planet Ocean Ultra Deep
At retail, the Omega Seamaster Diver 300M is listed at $5,700 while the Omega Seamaster Planet Ocean Ultra Deep comes in at $11,400. At $5,700 less (100% savings), the Omega Seamaster Diver 300M offers a substantially lower entry point. On the secondary market, the gap narrows: the Omega Seamaster Diver 300M trades around $4,700 and the Omega Seamaster Planet Ocean Ultra Deep around $9,120, a difference of $4,420 favoring the Omega Seamaster Diver 300M. Available at 18% below retail and trending downward, this represents a buying opportunity for those comfortable with the current market position. The Omega Seamaster Planet Ocean Ultra Deep shows a more modest market premium of -20.0%, 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 Diver 300M | Omega Seamaster Planet Ocean Ultra Deep |
|---|---|---|
| Case Diameter | 42mm | 45.5mm |
| Case Thickness | 13.56mm | 18.12mm |
| Case Material | Stainless steel | Stainless steel (O-MEGASTEEL) |
| Bezel | Blue ceramic unidirectional rotating bezel with diving scale | Black ceramic unidirectional rotating bezel with liquidmetal diving scale |
| Crystal | Domed sapphire crystal with anti-reflective treatment | Sapphire crystal with anti-reflective treatment |
| Water Resistance | 300m / 1000ft | 6000m / 19685ft |
| Movement | Omega Co-Axial Master Chronometer calibre 8800 | Omega Co-Axial Master Chronometer calibre 8912 |
| Movement Type | Automatic | Automatic |
| Power Reserve | 55 hours | 55 hours |
| Bracelet/Strap | Stainless steel bracelet | Stainless steel bracelet (O-MEGASTEEL) |
| Clasp | Folding clasp with diver extension | Folding clasp with diver extension |
| Lug Width | 20mm | 22mm |
Key specification differences stand out between these two: The Omega Seamaster Planet Ocean Ultra Deep leads in water resistance (6000m / 19685ft vs. 300m / 1000ft), and the Omega Seamaster Diver 300M uses Stainless steel while the Omega Seamaster Planet Ocean Ultra Deep opts for Stainless steel (O-MEGASTEEL). 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 Diver 300M costs $112 versus $200 for the Omega Seamaster Planet Ocean Ultra Deep. For water resistance, the Omega Seamaster Planet Ocean Ultra Deep delivers better value per meter of depth rating. The Omega Seamaster Diver 300M offers more power reserve per dollar spent.
Which Should You Buy?
Choose the Omega Seamaster Diver 300M if you value a lower entry price, better value retention, serious diving capabilities. Go with the Omega Seamaster Planet Ocean Ultra Deep if you prioritize serious diving capabilities.
Frequently Asked Questions
Which is more affordable, the Omega Seamaster Diver 300M or the Omega Seamaster Planet Ocean Ultra Deep?
The Omega Seamaster Diver 300M is more accessible, priced at $5,700 compared to $11,400.
Which holds its value better on the secondary market?
The Omega Seamaster Diver 300M currently trades at 17.5% below retail, indicating moderate value retention on the pre-owned market.
How do the Omega Seamaster Diver 300M and Omega Seamaster Planet Ocean Ultra Deep compare in size?
The Omega Seamaster Diver 300M measures 42mm in diameter and 13.56mm thick, while the Omega Seamaster Planet Ocean Ultra Deep is 45.5mm by 18.12mm. Water resistance differs too: 300m / 1000ft versus 6000m / 19685ft.
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 Omega Seamaster Planet Ocean Ultra Deep runs on the Omega Co-Axial Master Chronometer calibre 8912 offering 55 hours of power reserve.
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