Blancpain has taken a notably restrained route for the 70th anniversary of the Bathyscaphe.
Rather than stretching the idea into a broad tribute, the new Fifty Fathoms Bathyscaphe 70th Anniversary Limited Edition looks directly to a 1968 reference and keeps the essentials intact.
The result is a compact, period-minded dive watch with modern movement technology, 300 metres of water resistance and a case size that feels refreshingly deliberate.

At a glance
- Blancpain has introduced a 300-piece Fifty Fathoms Bathyscaphe 70th Anniversary Limited Edition inspired by a 1968 Bathyscaphe.
- The watch uses a 37.4mm stainless-steel case, meteor-gray dial, ceramic bezel insert and automatic caliber 1150 with a 100-hour power reserve.
- Pricing is CHF 13,800, with each example individually numbered.
A civilian Fifty Fathoms with 1960s proportions
The Bathyscaphe has always occupied a distinct place inside Blancpain’s dive-watch story.
Introduced in 1956, it was conceived as the more relaxed counterpart to the Fifty Fathoms, a watch that carried serious underwater credibility in a form better suited to daily wear.
That distinction matters because the Fifty Fathoms of the era typically sat around 41mm to 42mm, a large format by mid-century standards.

The Bathyscaphe answered with a smaller and more elegant profile, aligning with the rise of recreational diving and the skin-diver watches that followed it.
For the anniversary model, Blancpain has kept the 37.4mm diameter of the 1968 watch, paired with a 12.3mm thickness and a 46.5mm lug-to-lug measurement.
The case is stainless steel and has been developed around the movement to preserve the slim middle, curved surfaces and shaped lugs that give the design its vintage poise.

The dial and bezel carry the period character
The most immediate link to the 1968 model is the sunburst meteor-gray dial.
It carries Blancpain’s mid-century logo, along with baton hour and minute hands, an arrow-tipped seconds hand and 18K white-gold baton indexes.
The hands and markers are treated with vintage-colored Super-LumiNova, a practical update that still leaves the watch visually anchored in the late 1960s.

The bezel follows the historic design closely, though Blancpain has replaced the black Hesalite insert with ceramic and lacquered numerals.
That choice keeps the period look while giving the watch a more durable modern surface.
A chocolate calfskin strap with a pin buckle completes the more civilian character of the Bathyscaphe, setting it apart from the more tool-heavy language often associated with dive watches.
Caliber 1150 brings the technical upgrade
The vintage proportions are the headline, but the movement is where the modern watch clearly steps away from 1968.
Inside is Blancpain’s automatic manufacture caliber 1150, offering a 100-hour power reserve and a silicon hairspring for improved resistance to magnetism.
The movement drives hours, minutes, seconds and date, keeping the functionality straightforward and true to the watch’s everyday brief.
Unlike the closed back of the historic model, this edition uses a sapphire caseback that reveals the movement and its 18K gold oscillating weight.
Water resistance is rated to 300 metres, which gives the watch proper dive-watch capability despite its compact, dressier stance.
Details & Specifications
| Brand | Blancpain |
|---|---|
| Model | Fifty Fathoms Bathyscaphe 70th Anniversary Limited Edition Ref. 5903 1110 63A |
| Case size | 37.4mm diameter, 12.3mm thick, 46.5mm lug to lug |
| Case material | Stainless steel |
| Bezel | Steel bezel with ceramic insert and lacquered numerals |
| Crystal and caseback | Sapphire crystal and sapphire caseback |
| Dial | Sunburst meteor gray with 18K white-gold baton indexes |
| Hands | Baton hour and minute hands with arrow-tipped seconds hand |
| Lume | Vintage-colored Super-LumiNova on hands and indexes |
| Movement | Blancpain manufacture automatic caliber 1150 |
| Functions | Hours, minutes, seconds and date |
| Power reserve | 100 hours |
| Water resistance | 300 metres |
| Strap | Chocolate calfskin strap with pin buckle |
| Price | CHF 13,800 |
| Availability | Limited to 300 individually numbered pieces |
The appeal here is less about nostalgia as decoration and more about proportion, restraint and continuity.
For collectors who like Blancpain’s dive-watch history but prefer smaller cases and quieter styling, this Bathyscaphe anniversary edition makes a compelling case for the skin-diver format in modern watchmaking.




