Omega Seamaster 300
Ref. 234.30.41.21.03.001
Omega Seamaster Planet Ocean 600M GMT
Ref. 215.30.44.22.01.001
Omega Seamaster 300 vs Omega Seamaster Planet Ocean 600M GMT
Ref. 234.30.41.21.03.001 vs Ref. 215.30.44.22.01.001
Choosing between the Omega Seamaster 300 (Ref. 234.30.41.21.03.001) and the Omega Seamaster Planet Ocean 600M GMT (Ref. 215.30.44.22.01.001) comes down to the details — both share the Seamaster DNA but differ in key specifications and market positioning. The Omega Seamaster 300 retails for $6,400 while the Omega Seamaster Planet Ocean 600M GMT is $8,050. Let's examine which variant offers better value and investment potential.
Price Comparison
Omega
Seamaster 300
Omega
Seamaster Planet Ocean 600M GMT
At retail, the Omega Seamaster 300 is listed at $6,400 while the Omega Seamaster Planet Ocean 600M GMT comes in at $8,050. The Omega Seamaster 300 saves you $1,650 (26% less), a meaningful difference for most buyers. On the secondary market, the gap narrows: the Omega Seamaster 300 trades around $5,120 and the Omega Seamaster Planet Ocean 600M GMT around $6,440, a difference of $1,320 favoring the Omega Seamaster 300. Available at 20% below retail and trending downward, this represents a buying opportunity for those comfortable with the current market position. The Omega Seamaster Planet Ocean 600M GMT 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 300 | Omega Seamaster Planet Ocean 600M GMT |
|---|---|---|
| Case Diameter | 41mm | 43.5mm |
| Case Thickness | 13.85mm | 14.71mm |
| Case Material | Stainless steel | Stainless steel |
| Bezel | Blue ceramic unidirectional rotating bezel with liquidmetal diving scale | Black ceramic bidirectional rotating bezel with 24-hour scale |
| Crystal | Domed sapphire crystal with anti-reflective treatment | Domed sapphire crystal with anti-reflective treatment |
| Water Resistance | 300m / 1000ft | 600m / 2000ft |
| Movement | Omega Co-Axial Master Chronometer calibre 8912 | Omega Co-Axial Master Chronometer calibre 8906 |
| Movement Type | Automatic | Automatic |
| Power Reserve | 55 hours | 55 hours |
| Bracelet/Strap | Stainless steel bracelet | Stainless steel bracelet |
| Clasp | Adjustable clasp | Folding clasp with diver extension |
| Lug Width | 20mm | 21mm |
Key specification differences stand out between these two: The Omega Seamaster Planet Ocean 600M GMT leads in water resistance (600m / 2000ft vs. 300m / 1000ft). With 4 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 300 costs $125 versus $148 for the Omega Seamaster Planet Ocean 600M GMT. For water resistance, the Omega Seamaster Planet Ocean 600M GMT delivers better value per meter of depth rating. The Omega Seamaster 300 offers more power reserve per dollar spent.
Which Should You Buy?
Choose the Omega Seamaster 300 if you value a lower entry price, serious diving capabilities. Go with the Omega Seamaster Planet Ocean 600M GMT if you prioritize the Omega heritage.
Frequently Asked Questions
Which is more affordable, the Omega Seamaster 300 or the Omega Seamaster Planet Ocean 600M GMT?
The Omega Seamaster 300 is more accessible, priced at $6,400 compared to $8,050.
Which holds its value better on the secondary market?
The Omega Seamaster Planet Ocean 600M GMT currently trades at 20.0% below retail, indicating moderate value retention on the pre-owned market.
How do the Omega Seamaster 300 and Omega Seamaster Planet Ocean 600M GMT compare in size?
The Omega Seamaster 300 measures 41mm in diameter and 13.85mm thick, while the Omega Seamaster Planet Ocean 600M GMT is 43.5mm by 14.71mm. Water resistance differs too: 300m / 1000ft versus 600m / 2000ft.
What movements do these watches use?
The Omega Seamaster 300 uses the Omega Co-Axial Master Chronometer calibre 8912 with 55 hours power reserve, while the Omega Seamaster Planet Ocean 600M GMT runs on the Omega Co-Axial Master Chronometer calibre 8906 offering 55 hours of power reserve.
Related Comparisons
Omega Seamaster 300
vs Rolex Submariner Date
Omega Seamaster 300
vs Rolex Submariner Date
Omega Seamaster 300
vs Rolex Submariner
Omega Seamaster Planet Ocean 600M GMT
vs Rolex GMT-Master II
Omega Seamaster Planet Ocean 600M GMT
vs Rolex GMT-Master II
Omega Seamaster Planet Ocean 600M GMT
vs Rolex GMT-Master II