Omega Speedmaster First Omega in Space vs Rolex GMT-Master
Ref. 311.30.42.30.01.006 vs Ref. 1675
Comparing the Rolex GMT-Master to the Omega Speedmaster First Omega in Space means weighing a significant price difference — is the premium justified? At ~$6,000 (market value) versus ~$32,000 (market value), 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
Speedmaster First Omega in Space
Rolex
GMT-Master
The Omega Speedmaster First Omega in Space is priced at ~$6,000 (market value) while the Rolex GMT-Master comes in at ~$32,000 (market value). On the secondary market, the gap widens: the Omega Speedmaster First Omega in Space trades around $6,000 and the Rolex GMT-Master around $32,000, a difference of $26,000 favoring the Omega Speedmaster First Omega in Space. Trading at 9% above retail and trending upward, this model holds its value well on the pre-owned market. The Rolex GMT-Master shows a more modest market premium of 0.0%, with upward momentum. For investors, the Rolex GMT-Master edges ahead with a flip potential score of 6/10 compared to 5/10.
Specifications
| Specification | Omega Speedmaster First Omega in Space | Rolex GMT-Master |
|---|---|---|
| Case Diameter | 39.7mm | 40mm |
| Case Thickness | 14.3mm | 12.0mm |
| Case Material | Stainless steel | Stainless steel |
| Bezel | Black anodized aluminium bezel ring with tachymetre scale | Stainless steel with aluminum insert in blue and red |
| Crystal | Hesalite crystal | Acrylic with Cyclops lens |
| Water Resistance | 50m / 167ft | 50m / 165ft |
| Movement | Omega calibre 1861 | Rolex calibre 1575 |
| Movement Type | Manual-winding | Automatic |
| Power Reserve | 48 hours | 48 hours |
| Bracelet/Strap | Brown leather strap | Oyster, folded or riveted links (varies by year) |
| Clasp | Steel buckle | Oyster folding clasp |
| Lug Width | 19mm | 20mm |
Key specification differences stand out between these two: the Omega Speedmaster First Omega in Space features 39.7mm for case diameter compared to the Rolex GMT-Master's 40mm. 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 Speedmaster First Omega in Space costs $151 versus $800 for the Rolex GMT-Master. For water resistance, the Omega Speedmaster First Omega in Space delivers better value per meter of depth rating. The Omega Speedmaster First Omega in Space offers more power reserve per dollar spent.
Which Should You Buy?
Choose the Omega Speedmaster First Omega in Space if you value better value retention, timing functionality. Go with the Rolex GMT-Master if you prioritize stronger flip potential. For pure investment potential, the Rolex GMT-Master has the edge based on current market data.
Frequently Asked Questions
Which is more affordable, the Omega Speedmaster First Omega in Space or the Rolex GMT-Master?
The Omega Speedmaster First Omega in Space is more accessible, priced at ~$6,000 (market value) compared to ~$32,000 (market value).
Which watch is a better investment?
Based on current market data, the Rolex GMT-Master has a higher flip potential score of 6/10, suggesting stronger investment returns. However, watch values can fluctuate based on market conditions.
Which holds its value better on the secondary market?
The Omega Speedmaster First Omega in Space currently trades at 9.1% above retail, indicating strong value retention on the pre-owned market.
How do the Omega Speedmaster First Omega in Space and Rolex GMT-Master compare in size?
The Omega Speedmaster First Omega in Space measures 39.7mm in diameter and 14.3mm thick, while the Rolex GMT-Master is 40mm by 12.0mm. Water resistance differs too: 50m / 167ft versus 50m / 165ft.
What movements do these watches use?
The Omega Speedmaster First Omega in Space uses the Omega calibre 1861 with 48 hours power reserve, while the Rolex GMT-Master runs on the Rolex calibre 1575 offering 48 hours of power reserve.
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