Rolex 1908 vs Tudor Black Bay GMT
Ref. M52508-0006 vs Ref. M79830RB-0010
The Rolex 1908 and Tudor Black Bay GMT represent one of the most compelling matchups in luxury watches — a sibling rivalry between two brands under the same parent company. With the Rolex 1908 priced at $27,100 and the Tudor Black Bay GMT at $4,150, the price gap raises a critical question: does the extra investment in the pricier option deliver proportional value? We break down the specs, market performance, and flip potential to help you decide.
Price Comparison
Rolex
1908
Tudor
Black Bay GMT
At retail, the Rolex 1908 is listed at $27,100 while the Tudor Black Bay GMT comes in at $4,150. The Tudor Black Bay GMT comes in at $22,950 less — more than half the price difference — making it a significantly more accessible option. On the secondary market, the gap narrows: the Rolex 1908 trades around $20,000 and the Tudor Black Bay GMT around $3,735, a difference of $16,265 favoring the Tudor Black Bay GMT. Available at 26% below retail and trending downward, this represents a buying opportunity for those comfortable with the current market position. The Tudor Black Bay GMT commands an even stronger market premium of -10.0%, holding steady. For investors, the Rolex 1908 edges ahead with a flip potential score of 3/10 compared to 2/10.
Specifications
| Specification | Rolex 1908 | Tudor Black Bay GMT |
|---|---|---|
| Case Diameter | 39mm | 41mm |
| Case Thickness | 10.4mm | 14.8mm |
| Case Material | 18ct yellow gold | Stainless steel |
| Bezel | 18ct yellow gold, domed and fluted | Bidirectional rotating bezel with anodized aluminium insert in burgundy and blue |
| Crystal | Sapphire, domed | Sapphire crystal |
| Water Resistance | 50m / 165ft | 200m / 660ft |
| Movement | Rolex calibre 7140 | Tudor Calibre MT5652 |
| Movement Type | Automatic | Automatic |
| Power Reserve | 66 hours | 70 hours |
| Bracelet/Strap | Alligator leather strap | Fabric NATO strap in burgundy and blue |
| Clasp | 18ct yellow gold folding Oysterclasp | Buckle |
| Lug Width | 20mm | 22mm |
Key specification differences stand out between these two: The Tudor Black Bay GMT leads in water resistance (200m / 660ft vs. 50m / 165ft), and the Tudor Black Bay GMT offers longer power reserve at 70 hours, and the Rolex 1908 uses 18ct yellow gold while the Tudor Black Bay GMT opts for Stainless steel. 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 Rolex 1908 costs $513 versus $91 for the Tudor Black Bay GMT. For water resistance, the Tudor Black Bay GMT delivers better value per meter of depth rating. The Tudor Black Bay GMT offers more power reserve per dollar spent.
Which Should You Buy?
Choose the Rolex 1908 if you value stronger flip potential. Go with the Tudor Black Bay GMT if you prioritize a lower entry price, better value retention. For pure investment potential, the Rolex 1908 has the edge based on current market data.
Frequently Asked Questions
Which is more affordable, the Rolex 1908 or the Tudor Black Bay GMT?
The Tudor Black Bay GMT is more accessible, priced at $4,150 compared to $27,100.
Which watch is a better investment?
Based on current market data, the Rolex 1908 has a higher flip potential score of 3/10, suggesting stronger investment returns. However, watch values can fluctuate based on market conditions.
Which holds its value better on the secondary market?
The Tudor Black Bay GMT currently trades at 10.0% below retail, indicating moderate value retention on the pre-owned market.
How do the Rolex 1908 and Tudor Black Bay GMT compare in size?
The Rolex 1908 measures 39mm in diameter and 10.4mm thick, while the Tudor Black Bay GMT is 41mm by 14.8mm. Water resistance differs too: 50m / 165ft versus 200m / 660ft.
What movements do these watches use?
The Rolex 1908 uses the Rolex calibre 7140 with 66 hours power reserve, while the Tudor Black Bay GMT runs on the Tudor Calibre MT5652 offering 70 hours of power reserve.