Watch Straps for the Blancpain Fifty Fathoms
The Blancpain Fifty Fathoms is the original modern dive watch — invented in 1953, it predates the Rolex Submariner and is one of the most historically significant watches in existence. The Fifty Fathoms Automatique (ref. 5015) uses a 23mm lug width — an unusual dimension. The Bathyscaphe uses 23mm as well. This is distinct from the Swatch x Blancpain (which uses 22mm). Blancpain's official straps cost $300–$600. AliExpress has 23mm leather, rubber, and sailcloth options from $6.
Popular strap styles for the Blancpain Fifty Fathoms
Buying tips
- 01The real Blancpain Fifty Fathoms uses 23mm — NOT 22mm (that's the Swatch collaboration). Don't mix them up.
- 0223mm is an uncommon lug width — AliExpress selection is smaller than 20mm or 22mm, but quality rubber and leather options exist.
- 03The Fifty Fathoms' dive-watch heritage suits rubber, tropic, and sailcloth straps best.
- 04Search '23mm watch strap rubber' or '23mm dive strap' specifically — generic searches may return 22mm results.
34 cheap straps for the Blancpain Fifty Fathoms
Watchdives 20mm 22mm Soft Rubber Waffle Strap Bracelet Universal Men Diver Silicone Waterproof Sport for Seiko5 SKX007 Watchband
Genuine Leather Watchbands Calfskin Replace Wristwatch Straps 18mm 20mm 22mm 24mm Watch Accessories Men Women Soft Watchband
Army Style Nylon Watch Strap for Citizen Eco-Drive Bm8475 for Seagull Seiko Tissot Genuine Leather Watchband 18 19 20 22 24mm
High Quality Woven pattern Sports Deployant Watch Band 20mm 21mm 22mm FKM Rubber Watch Strap
Silicone Watch Strap 16mm 18mm 20mm 22mm 24mm 26mm for Men Women Curved End Rubber Bracelet Waterproof Folding Buckle Watch Band
Nylon Watch Band Ribbed Strap 16mm 18mm 19mm 20mm 22mm 24mm Military Ballistic Fabric Replacement Premium Watchband Accessories
Quick Release Silicone Rubber Watch Strap Soft Sports Watchband Black Green Orange Blue Wristband Bracelets 20mm 22mm Band
20mm 21mm 22mm 23mm 24mm For TAG HEUER Nylon Strap Wristband F1 Aquaracer Carrera Seiko 5 Citizen Omega Sport Watchband
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What lug width is the Blancpain Fifty Fathoms?
The Blancpain Fifty Fathoms Automatique (ref. 5015A, 5015D) uses a 23mm lug width. The Bathyscaphe (ref. 5000, 5100) also uses 23mm. The Fifty Fathoms MilSpec uses 23mm. The 'No Rad' vintage Fifty Fathoms reissue uses 23mm. This is distinct from the Swatch x Blancpain Scuba Fifty Fathoms (the BioCeramic collaboration), which uses 22mm. If you own the Swatch collaboration, see our Swatch x Blancpain page instead. For the real Blancpain Fifty Fathoms, 23mm is the correct width — an uncommon size with a smaller AliExpress selection than 20mm or 22mm, but still available in rubber, leather, and sailcloth from multiple sellers.
What's the best cheap rubber strap for the Blancpain Fifty Fathoms?
The Blancpain Fifty Fathoms is one of the most serious dive watches ever made — 300m water resistance, sapphire crystal, and an in-house automatic movement. FKM rubber is the most appropriate strap material. Search '23mm rubber watch strap' or '23mm FKM rubber strap quick release' on AliExpress for $8–$18 options. Note that 23mm has a smaller selection than 20mm or 22mm — you may need to look at multiple sellers to find quality options. Tropic-style perforated rubber at $6–$12 gives the Fifty Fathoms a vintage dive character historically accurate to the model. Sailcloth straps in 23mm are available from some AliExpress sellers for $12–$20 and suit the Fifty Fathoms' yachting heritage.
What's the difference between the Fifty Fathoms and the Swatch x Blancpain for strap purposes?
The real Blancpain Fifty Fathoms uses a 23mm lug width; the Swatch x Blancpain Scuba Fifty Fathoms uses 22mm. These are not interchangeable — a 23mm strap on the Swatch would be 1mm too wide on each side, and a 22mm strap on the real Fifty Fathoms would leave a visible gap. The real Fifty Fathoms also has a larger 45mm case, so 23mm is the proportionally appropriate width. The Swatch collaboration's smaller BioCeramic case is better-suited to 22mm. Before buying straps, confirm which watch you own. AliExpress has far more selection for 22mm (the Swatch) than 23mm (the real Fifty Fathoms) — but quality 23mm options do exist if you search specifically.