Blancpain is 70 years into the Fifty Fathoms and, for the anniversary, it has gone back to the moment the collection was at its most quietly perfect: 1968. The new Fifty Fathoms Bathyscaphe 70th Anniversary is a faithful re-edition of that year's civilian diver, in a 37.4mm steel case with box sapphire, sunburst meteor-grey dial, and the modern in-house Cal. 1150 doing 100 hours of reserve behind a display back. 300 pieces, €14,850. This is the anniversary piece a lot of Bathyscaphe collectors had quietly hoped for.
Why 1968, and why now
The Bathyscaphe arrived in 1956 as the civilian counterpart to the professional Fifty Fathoms. By 1968 the collection had settled into what most collectors now consider its most balanced form: a compact steel case, a discreet 300m water resistance rating, a clean applied-index dial, no unnecessary text, and lugs that curve into the wrist rather than sticking out. Blancpain has chosen that 1968 piece as the reference point for the 70th anniversary, which is the correct call. It is the version of the Bathyscaphe that reads as most vintage-adjacent without becoming a costume piece.
The specs, in one glance
- Reference: 5903 1110 63A.
- Case: 37.4mm x 12.3mm polished stainless steel, lug-to-lug 46.5mm. Screw-down crown and screw-down caseback.
- Crystal: Box-shaped sapphire, front and rear (front dome mimics the original plexiglass).
- Bezel: Unidirectional steel with a black ceramic 60-minute insert and lacquered numerals.
- Water resistance: 300m.
- Dial: Sunray-brushed meteor grey, applied 18K white gold hour markers with vintage-tone Super-LumiNova, polished baton hands, arrow-shaped seconds hand, framed date at 3 o'clock, mid-20th-century Blancpain signature.
- Movement: Blancpain Cal. 1150. In-house automatic, 21,600 vph, 28 jewels, 210 components, 100-hour power reserve, silicon hairspring, openworked 18K gold rotor.
- Strap: Chocolate brown calf leather with off-white contrast stitching, steel pin buckle.
- Delivery: Peli-branded protective case.
- Production: Limited to 300 pieces.
- Price: €14,850 (CHF 13,800).
What Blancpain got right
- Case diameter. 37.4mm is the correct size for a re-edition of a 1968 diver. Every previous Bathyscaphe revival has landed at 38 or 43mm; the 37.4mm figure is closer to what the original actually was, and it wears like a proper vintage piece rather than a modern shrink-to-vintage compromise.
- Box sapphire. The domed front crystal is the single most important vintage-cue on the piece. Flat sapphire would have killed the illusion. The rear crystal is also sapphire, letting you see the openworked 18K gold rotor and silicon hairspring.
- Applied 18K white gold indices with vintage Super-LumiNova. The lume tone is a warmer cream than modern C1 or C3, matching what tritium would look like now, without the actual tritium hazard. The white-gold markers keep the dial reading modern under a loupe.
- Cal. 1150 movement. 100-hour power reserve on a compact 3Hz automatic is genuinely useful, and the silicon hairspring means magnetism becomes a non-issue on a piece you might actually wear diving.
- Restraint. The dial says "Blancpain" and "Fifty Fathoms" and nothing else. No "Automatic", no "300m", no "chronometer" text. That is exactly how a 1968 Bathyscaphe dial reads.
Where the compromises hide
- Framed date at 3. The 1968 original had a date window with a thin metal frame, and Blancpain kept that here. It is a truthful vintage cue and it is also, for some collectors, the one detail they wish had been dropped in favour of a no-date dial. Fair debate, no wrong answer.
- 12.3mm thick. That is more than a period-correct 1968 diver would have measured (usually 10-11mm). The extra thickness is where the modern 300m case-back and the 100-hour Cal. 1150 live. On the wrist it still reads slim, but it is not a truly vintage-thin case.
- No bracelet. Strap-only launch. If you want a period-correct beads-of-rice on this, the aftermarket will need to fill in.
- €14,850 is not cheap. That is Fifty Fathoms Bathyscaphe money, not "vintage-alternative" money. The comparison is a modern steel Bathyscaphe (~€13,000) plus a limited-edition premium, or a proper 1968 example from a specialist dealer at around the same figure.
37.4mm x 12.3mm x 46.5mm lug-to-lug is a small watch by 2026 standards but a large one by 1968 standards. On a 6.5-inch wrist it wears exactly right; on a 7-inch wrist it reads like a dress-diver rather than a big statement piece. The box sapphire adds height without adding visual weight, and the chocolate strap makes the whole watch look considerably older than it is. This is the Bathyscaphe most enthusiasts have been asking Blancpain for since 2019.
Who this is for
- You have wanted a 1968-shape Bathyscaphe since the 2020 Blancpain x Hodinkee "Ocean Commitment" bronze reawakened the community's appetite for smaller vintage-inspired divers.
- You cross-shop between the modern Bathyscaphe collection and vintage Bathyscaphe examples on a proper dealer's website, and you have found the vintage prices climbing while the modern pieces stayed 38mm+.
- You already own a 42mm sports diver and you want a compact dressy diver that reads properly vintage under a shirt cuff.
- You accept limited-edition premium pricing on the anniversary tax.
The verdict
The Bathyscaphe 70th Anniversary is Blancpain being honest about which decade of the Fifty Fathoms enthusiasts actually want on their wrist. It is not the biggest press-release Blancpain will do this year, and that is exactly why it is the most important one. 37.4mm, box sapphire, applied gold indices, meteor-grey sunburst dial, and a 100-hour in-house movement, in a 300-piece run for €14,850. If you had money in the modern-Bathyscaphe budget and were waiting for the version that actually looked like a 1968 Bathyscaphe, this is it. Move quickly - 300 pieces on a spec sheet this correct will not last.
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