Rolex Cosmograph Daytona vs Rolex Datejust 31
Ref. M126500LN-0001 vs Ref. M278271-0006
The Rolex Cosmograph Daytona and Rolex Datejust 31 both carry the Rolex name but serve different purposes — the Rolex Cosmograph Daytona as a chronograph and the Rolex Datejust 31 as a dress watch. At $16,550 and $14,300 respectively, the question isn't which is better — it's which better fits your collection and investment goals.
Price Comparison
Rolex
Cosmograph Daytona
Rolex
Datejust 31
At retail, the Rolex Cosmograph Daytona is listed at $16,550 while the Rolex Datejust 31 comes in at $14,300. The Rolex Datejust 31 saves you $2,250 (16% less), a meaningful difference for most buyers. On the secondary market, the gap widens: the Rolex Cosmograph Daytona trades around $30,000 and the Rolex Datejust 31 around $13,585, a difference of $16,415 favoring the Rolex Datejust 31. This watch trades at 81% above retail on the secondary market and is trending upward — a strong indicator of collector demand. The Rolex Datejust 31 shows a more modest market premium of -5.0%, holding steady. For investors, the Rolex Cosmograph Daytona edges ahead with a flip potential score of 8/10 compared to 4/10.
Specifications
| Specification | Rolex Cosmograph Daytona | Rolex Datejust 31 |
|---|---|---|
| Case Diameter | 40mm | 31mm |
| Case Thickness | 12.2mm | 11.3mm |
| Case Material | Oystersteel | Oystersteel and 18ct Everose gold |
| Bezel | Cerachrom (ceramic) in black with tachymetric scale | 18ct Everose gold, fluted |
| Crystal | Sapphire | Sapphire with Cyclops lens |
| Water Resistance | 100m / 330ft | 100m / 330ft |
| Movement | Rolex calibre 4131 | Rolex calibre 2236 |
| Movement Type | Automatic | Automatic |
| Power Reserve | 72 hours | 55 hours |
| Bracelet/Strap | Oyster, three-piece solid links | Jubilee, five-piece links in Oystersteel and 18ct Everose gold |
| Clasp | Oysterlock safety clasp with Easylink 5mm comfort extension | Oysterclasp with Easylink 5mm comfort extension |
| Lug Width | 20mm | 16mm |
Key specification differences stand out between these two: the Rolex Cosmograph Daytona offers longer power reserve at 72 hours, and the Rolex Cosmograph Daytona uses Oystersteel while the Rolex Datejust 31 opts for Oystersteel and 18ct Everose gold. With 7 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 Cosmograph Daytona costs $750 versus $438 for the Rolex Datejust 31. 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 Cosmograph Daytona if you value stronger flip potential, better value retention, timing functionality. Go with the Rolex Datejust 31 if you prioritize a lower entry price. For pure investment potential, the Rolex Cosmograph Daytona has the edge based on current market data.
Frequently Asked Questions
Which is more affordable, the Rolex Cosmograph Daytona or the Rolex Datejust 31?
The Rolex Datejust 31 is more accessible, priced at $14,300 compared to $16,550.
Which watch is a better investment?
Based on current market data, the Rolex Cosmograph Daytona 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 Cosmograph Daytona currently trades at 81.3% above retail, indicating strong value retention on the pre-owned market.
How do the Rolex Cosmograph Daytona and Rolex Datejust 31 compare in size?
The Rolex Cosmograph Daytona measures 40mm in diameter and 12.2mm thick, while the Rolex Datejust 31 is 31mm by 11.3mm.
What movements do these watches use?
The Rolex Cosmograph Daytona uses the Rolex calibre 4131 with 72 hours power reserve, while the Rolex Datejust 31 runs on the Rolex calibre 2236 offering 55 hours of power reserve.
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