Hands-On: Blancpain Fifty Fathoms Automatique 5010 Titanium Blue — The Most Beautiful Diver Gets Smaller
Blancpain's 42mm Fifty Fathoms Automatique in Titanium Blue
When discussing luxury legacy sports watches, the Blancpain Fifty Fathoms is impossible to ignore. Having existed since the 1950s, it has evolved into a top-tier luxury adventure watch that is both authentically durable and structurally beautiful. With the introduction of the 5010 Automatique in titanium with a blue dial, Blancpain proves that even a platform perceived as retro-oriented can feel thoroughly modern when executed with care.
Why the 42mm Case Matters
The pictured reference 5010 12B40 O64B represents a significant step in the Fifty Fathoms' evolution. After years of offering the diver exclusively in 45mm cases, Blancpain introduced the 42.3mm × 14.3mm case that fits a far wider range of wrists. While the larger 45mm models remain available, the 42mm version has proven more popular — and ironically commands a higher price due to its more recent release.
Design and Finishing
The titanium case is rendered beautifully, with Blancpain's signature fit and finishing evident throughout. A curved sapphire crystal over the bezel insert adds a premium touch, while the dial features polished applied hour markers and hands that catch the light with elegance. The luminous material is generously applied, ensuring excellent legibility in low-light conditions — a critical requirement for any serious dive watch.
Water resistance is rated at 300 meters, making this watch suitable for actual diving despite its refined appearance. The watch is delivered with a rubber strap, though canvas and matching titanium bracelet options are also available.
| Specification | Detail |
|---|---|
| Reference | 5010 12B40 O64B |
| Case Size | 42.3mm × 14.3mm |
| Material | Grade 5 Titanium |
| Water Resistance | 300 meters |
| Movement | Blancpain Cal. 1315 |
| Power Reserve | 120 hours (5 days) |
| Dial | Blue sunburst |
| Strap Options | Rubber, canvas, titanium bracelet |
| Price | $18,400 USD |
Inside: Caliber 1315
The in-house Caliber 1315 automatic movement is visible through the sapphire caseback. Operating at 4Hz with a five-day (120-hour) power reserve, it features a silicon hairspring for enhanced accuracy and environmental resistance. While not a new mechanism, the caliber is beautifully finished and delivers performance that justifies Blancpain's premium positioning. Its exclusivity is notable — you won't find this movement in significantly cheaper watches.
The Competitive Landscape
At $18,400 USD, the 5010 Titanium Blue sits in competitive territory alongside the Rolex Submariner, Omega Seamaster 300M, and Omega Planet Ocean. However, Blancpain's offering distinguishes itself through its heritage — the Fifty Fathoms predates the Submariner — and its exceptional case finishing. As one reviewer noted: "Blancpain's Fifty Fathoms Automatique watches are the most beautiful in their category."
Frequently Asked Questions
Q: Does the 5010 come with all three strap options included?
A: No, each watch comes with one strap of your choice. Additional rubber, canvas, or titanium bracelet straps must be purchased separately.
Q: Is the 42mm version water-resistant to the same depth as the 45mm?
A: Yes, both the 42mm and 45mm Fifty Fathoms Automatique models are rated to 300 meters water resistance.
Q: How does the Cal. 1315 differ from the Cal. 1315A used in the Tech series?
A: The Cal. 1315A includes additional components for the Tech series' three-hour dive bezel functionality, while the standard Cal. 1315 is a time-and-date movement only.
Explore More
Browse our Blancpain Fifty Fathoms collection or compare with other luxury dive watches in our curated selection.
Sources: aBlogtoWatch — Hands-on review dated March 29, 2025 by Ariel Adams. All specifications and pricing verified against official Blancpain press materials.