Omega Speedmaster Moonwatch Professional vs Rolex GMT-Master II
Ref. 310.30.42.50.01.002 vs Ref. 116710LN
Comparing the Rolex GMT-Master II to the Omega Speedmaster Moonwatch Professional means weighing a significant price difference — is the premium justified? At $8,100 versus ~$15,000 (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 Moonwatch Professional
Rolex
GMT-Master II
The Omega Speedmaster Moonwatch Professional is priced at $8,100 while the Rolex GMT-Master II comes in at ~$15,000 (market value). On the secondary market, the gap narrows: the Omega Speedmaster Moonwatch Professional trades around $7,200 and the Rolex GMT-Master II around $15,000, a difference of $7,800 favoring the Omega Speedmaster Moonwatch Professional. Available at 11% below retail and trending downward, this represents a buying opportunity for those comfortable with the current market position. The Rolex GMT-Master II commands an even stronger market premium of +62.2%, with upward momentum. For investors, the Rolex GMT-Master II edges ahead with a flip potential score of 9/10 compared to 2/10.
Specifications
| Specification | Omega Speedmaster Moonwatch Professional | Rolex GMT-Master II |
|---|---|---|
| Case Diameter | 42mm | 40mm |
| Case Thickness | 13.18mm | 13.0mm |
| Case Material | Stainless steel | Oystersteel |
| Bezel | Anodized aluminium bezel ring with tachymetre scale | Cerachrom (ceramic) in black |
| Crystal | Sapphire crystal front and caseback | Sapphire with Cyclops lens |
| Water Resistance | 50m / 167ft | 100m / 330ft |
| Movement | Omega Co-Axial Master Chronometer calibre 3861 | Rolex calibre 3186 |
| Movement Type | Manual-winding | Automatic |
| Power Reserve | 50 hours | 48 hours |
| Bracelet/Strap | Stainless steel bracelet | Oyster, three-piece solid links |
| Clasp | Adjustable clasp | Oysterclasp with Easylink 5mm comfort extension |
| Lug Width | 20mm | 20mm |
Key specification differences stand out between these two: The Rolex GMT-Master II leads in water resistance (100m / 330ft vs. 50m / 167ft), and the Omega Speedmaster Moonwatch Professional offers longer power reserve at 50 hours, and the Omega Speedmaster Moonwatch Professional uses Stainless steel while the Rolex GMT-Master II opts for Oystersteel. With 8 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 Moonwatch Professional costs $171 versus $375 for the Rolex GMT-Master II. For water resistance, the Omega Speedmaster Moonwatch Professional delivers better value per meter of depth rating. The Omega Speedmaster Moonwatch Professional offers more power reserve per dollar spent.
Which Should You Buy?
Choose the Omega Speedmaster Moonwatch Professional if you value timing functionality. Go with the Rolex GMT-Master II if you prioritize a lower entry price, stronger flip potential, better value retention. For pure investment potential, the Rolex GMT-Master II has the edge based on current market data.
Frequently Asked Questions
Which is more affordable, the Omega Speedmaster Moonwatch Professional or the Rolex GMT-Master II?
The Omega Speedmaster Moonwatch Professional is more accessible, priced at $8,100 compared to ~$15,000 (market value).
Which watch is a better investment?
Based on current market data, the Rolex GMT-Master II has a higher flip potential score of 9/10, suggesting stronger investment returns. However, watch values can fluctuate based on market conditions.
Which holds its value better on the secondary market?
The Rolex GMT-Master II currently trades at 62.2% above retail, indicating strong value retention on the pre-owned market.
How do the Omega Speedmaster Moonwatch Professional and Rolex GMT-Master II compare in size?
The Omega Speedmaster Moonwatch Professional measures 42mm in diameter and 13.18mm thick, while the Rolex GMT-Master II is 40mm by 13.0mm. Water resistance differs too: 50m / 167ft versus 100m / 330ft.
What movements do these watches use?
The Omega Speedmaster Moonwatch Professional uses the Omega Co-Axial Master Chronometer calibre 3861 with 50 hours power reserve, while the Rolex GMT-Master II runs on the Rolex calibre 3186 offering 48 hours of power reserve.
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