Blancpain / Fifty Fathoms
Blancpain Fifty Fathoms
Collection profile · 1953
Blancpain's Fifty Fathoms is the archetypal modern dive watch: born for serious underwater use in 1953, now spanning polished steel, technical titanium, and anniversary pieces with the same stark clarity.
Collection shots


Pronunciation & name
FIF-tee FATH-ums
A fathom is a nautical depth unit equal to six feet; fifty fathoms is roughly 300 feet.
Why it matters
The Fifty Fathoms is one of the defining dive-watch lines. It still reads as a tool, but now carries Blancpain's modern luxury vocabulary with real authority.
Key references
Collection timeline
- 1953 — Blancpain launches the Fifty Fathoms as a professional diving watch.
- 2007 — The calibre 1315 generation becomes a backbone of the contemporary Fifty Fathoms line.
- 2023 — Blancpain marks the collection’s 70th anniversary with Acts 1, 2, and 3.
- 2025 — The polished-steel Fifty Fathoms joins the permanent collection.
News
- Fifty Fathoms 70th Anniversary Act 1 2023 — The anniversary program opens with a 42 mm stainless-steel watch and a three-part limited series. ↗
- Fifty Fathoms 70th Anniversary Act 2 Tech Gombessa 2023 — A technical-diving chapter adds a three-hour bezel and a 47 mm titanium case. ↗
- Fifty Fathoms 70th Anniversary Act 3 2023 — A 555-piece bronze-gold reinterpretation brings back the historical moisture indicator. ↗
- The iconic Fifty Fathoms now in polished steel 2025 — The 42 mm automatic joins the permanent collection in polished stainless steel. ↗
Fun facts
A depth in the name
A fathom is a maritime depth unit; the name signals the model’s underwater purpose before any styling cue.
Moisture indicator revival
The 2023 Act 3 anniversary model revived the moisture-indicator look associated with early professional dive-watch needs.
FAQ
Why is the Fifty Fathoms important?
Blancpain positions it as the first true modern diving watch, launched in 1953 for professional underwater use.
What defines the collection visually?
A unidirectional rotating bezel, high-contrast dial, luminous markers, and a purposeful instrument-like profile.
Does the line stay close to its roots?
Yes. The modern range still leans on diving logic, then expands it through steel, titanium, red gold, and bronze-gold editions.
More from Blancpain
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— Blancpain's Ladybird is the maison's long-running women's watch family, pairing compact mechanical watchmaking with color, moon phases, gem-setting, and jewelry-led elegance. - Métiers d'Art — Blancpain’s Métiers d'Art collection brings together one-of-a-kind or highly exclusive artistic watches made in the manufacture’s Le Brassus workshops, showcasing crafts such as enamel painting, engraving, damascening, shakudō, marquetry, binchōtan, and porcelain dial making.