Rolex Datejust 31 vs Rolex GMT-Master II
Ref. M278271-0006 vs Ref. 126710BLRO
The Rolex Datejust 31 and Rolex GMT-Master II both carry the Rolex name but serve different purposes — the Rolex Datejust 31 as a dress watch and the Rolex GMT-Master II as a gmt / travel watch. At $14,300 and $12,350 respectively, the question isn't which is better — it's which better fits your collection and investment goals.
Price Comparison
Rolex
Datejust 31
Rolex
GMT-Master II
At retail, the Rolex Datejust 31 is listed at $14,300 while the Rolex GMT-Master II comes in at $12,350. The Rolex GMT-Master II saves you $1,950 (16% less), a meaningful difference for most buyers. On the secondary market, the gap widens: the Rolex Datejust 31 trades around $13,585 and the Rolex GMT-Master II around $20,500, a difference of $6,915 favoring the Rolex Datejust 31. Currently holding steady at just 5% below retail, this watch retains most of its value on the secondary market. The Rolex GMT-Master II commands an even stronger market premium of +66.0%, with upward momentum. For investors, the Rolex GMT-Master II edges ahead with a flip potential score of 8/10 compared to 4/10.
Specifications
| Specification | Rolex Datejust 31 | Rolex GMT-Master II |
|---|---|---|
| Case Diameter | 31mm | 40mm |
| Case Thickness | 11.3mm | 13.1mm |
| Case Material | Oystersteel and 18ct Everose gold | Oystersteel |
| Bezel | 18ct Everose gold, fluted | Cerachrom (ceramic) in blue and red |
| Crystal | Sapphire with Cyclops lens | Sapphire with Cyclops lens |
| Water Resistance | 100m / 330ft | 100m / 330ft |
| Movement | Rolex calibre 2236 | Rolex calibre 3285 |
| Movement Type | Automatic | Automatic |
| Power Reserve | 55 hours | 70 hours |
| Bracelet/Strap | Jubilee, five-piece links in Oystersteel and 18ct Everose gold | Jubilee, five-piece links |
| Clasp | Oysterclasp with Easylink 5mm comfort extension | Oysterclasp with Easylink 5mm comfort extension |
| Lug Width | 16mm | 20mm |
Key specification differences stand out between these two: the Rolex GMT-Master II offers longer power reserve at 70 hours, and the Rolex Datejust 31 uses Oystersteel and 18ct Everose gold while the Rolex GMT-Master II opts for Oystersteel. 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 Rolex Datejust 31 costs $438 versus $513 for the Rolex GMT-Master II. For water resistance, the Rolex Datejust 31 delivers better value per meter of depth rating. The Rolex Datejust 31 offers more power reserve per dollar spent.
Which Should You Buy?
Choose the Rolex Datejust 31 if you value the Rolex heritage. 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 Rolex Datejust 31 or the Rolex GMT-Master II?
The Rolex GMT-Master II is more accessible, priced at $12,350 compared to $14,300.
Which watch is a better investment?
Based on current market data, the Rolex GMT-Master II has a higher flip potential score of 8/10, 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 66.0% above retail, indicating strong value retention on the pre-owned market.
How do the Rolex Datejust 31 and Rolex GMT-Master II compare in size?
The Rolex Datejust 31 measures 31mm in diameter and 11.3mm thick, while the Rolex GMT-Master II is 40mm by 13.1mm.
What movements do these watches use?
The Rolex Datejust 31 uses the Rolex calibre 2236 with 55 hours power reserve, while the Rolex GMT-Master II runs on the Rolex calibre 3285 offering 70 hours of power reserve.