Omega Seamaster Aqua Terra 150M
Ref. 220.20.41.21.01.001
Omega Seamaster Planet Ocean 600M GMT
Ref. 215.30.44.22.01.001
Omega Seamaster Aqua Terra 150M vs Omega Seamaster Planet Ocean 600M GMT
Ref. 220.20.41.21.01.001 vs Ref. 215.30.44.22.01.001
Choosing between the Omega Seamaster Aqua Terra 150M (Ref. 220.20.41.21.01.001) 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 Aqua Terra 150M retails for $9,200 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 Aqua Terra 150M
Omega
Seamaster Planet Ocean 600M GMT
At retail, the Omega Seamaster Aqua Terra 150M is listed at $9,200 while the Omega Seamaster Planet Ocean 600M GMT comes in at $8,050. The Omega Seamaster Planet Ocean 600M GMT saves you $1,150 (14% less), a meaningful difference for most buyers. On the secondary market, the gap narrows: the Omega Seamaster Aqua Terra 150M trades around $7,360 and the Omega Seamaster Planet Ocean 600M GMT around $6,440, a difference of $920 favoring the Omega Seamaster Planet Ocean 600M GMT. 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 Aqua Terra 150M | Omega Seamaster Planet Ocean 600M GMT |
|---|---|---|
| Case Diameter | 41mm | 43.5mm |
| Case Thickness | 13.2mm | 14.71mm |
| Case Material | Stainless steel and 18K Moonshine gold | Stainless steel |
| Bezel | Moonshine gold bezel | 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 | 150m / 500ft | 600m / 2000ft |
| Movement | Omega Co-Axial Master Chronometer calibre 8900 | Omega Co-Axial Master Chronometer calibre 8906 |
| Movement Type | Automatic | Automatic |
| Power Reserve | 55 hours | 55 hours |
| Bracelet/Strap | Stainless steel and Moonshine gold bracelet | Stainless steel bracelet |
| Clasp | Folding 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. 150m / 500ft), and the Omega Seamaster Aqua Terra 150M uses Stainless steel and 18K Moonshine gold while the Omega Seamaster Planet Ocean 600M GMT opts for Stainless steel. With 6 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 Aqua Terra 150M costs $180 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 Planet Ocean 600M GMT offers more power reserve per dollar spent.
Which Should You Buy?
Choose the Omega Seamaster Aqua Terra 150M if you value serious diving capabilities. Go with the Omega Seamaster Planet Ocean 600M GMT if you prioritize a lower entry price.
Frequently Asked Questions
Which is more affordable, the Omega Seamaster Aqua Terra 150M or the Omega Seamaster Planet Ocean 600M GMT?
The Omega Seamaster Planet Ocean 600M GMT is more accessible, priced at $8,050 compared to $9,200.
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 Aqua Terra 150M and Omega Seamaster Planet Ocean 600M GMT compare in size?
The Omega Seamaster Aqua Terra 150M measures 41mm in diameter and 13.2mm thick, while the Omega Seamaster Planet Ocean 600M GMT is 43.5mm by 14.71mm. Water resistance differs too: 150m / 500ft versus 600m / 2000ft.
What movements do these watches use?
The Omega Seamaster Aqua Terra 150M uses the Omega Co-Axial Master Chronometer calibre 8900 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.
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