The classic. The one that started it all. The Swatch x Blancpain Bioceramic Scuba Fifty Fathoms in Atlantic Ocean is the blue model — and in the world of dive watches, blue is the colour that defines the genre. From the very first glimpse, the Atlantic Ocean is the model that most immediately and unmistakably evokes the spirit and heritage of the original Blancpain Fifty Fathoms — and for good reason. Blue and diving are inseparable, and this watch wears that relationship with total confidence and authority.
The story begins in 1953. Jean-Jacques Fiechter, then co-CEO of Blancpain and a passionate scuba diver himself, designed the original Fifty Fathoms — the world's first true diver's watch, built to meet the demands of military and civilian divers in a discipline that was still in its infancy. Seventy years later, Blancpain and Swatch came together to celebrate that legacy in the most unexpected and democratic way possible — placing the DNA of one of watchmaking's most revered icons into an innovative Bioceramic case, powered by the remarkable SISTEM51 automatic movement, at an RRP of $400.
The Atlantic Ocean model draws from the modern Fifty Fathoms design language — featuring Arabic and triangular-shaped hour markers, a date window positioned between 4 and 5 o'clock and the contemporary Blancpain logo, making it the most immediately recognisable and classically proportioned model in the collection. The rich blue Bioceramic case and crown deliver a depth of colour that shifts dramatically across different lighting conditions — from a deep midnight navy in low light to a vivid, saturated ocean blue in direct sunlight — capturing the full tonal range of the Atlantic itself. Developed and patented exclusively by Swatch, the Bioceramic material blends two thirds ceramic with one third biosourced material derived from castor oil, resulting in a silky matte finish that is uniquely tactile, durable and scratch-resistant.
The gradient dial is printed in multiple rich layers of blue, creating a depth and luminosity that rewards close inspection and looks extraordinary at any distance. Grade A Super-LumiNova on all hour indexes, hands and bezel scale ensures outstanding legibility in low light and underwater, while the unidirectional rotating Bioceramic bezel mimics the sapphire-covered bezel of the actual Fifty Fathoms in every proportional detail. The transparent sapphire display caseback reveals the SISTEM51 movement in full — decorated with a digital print of the Atlantic Ocean and its resident nudibranch in full colour, the rotor spinning with every movement of the wrist to keep the watch wound automatically. Five inscriptions complete the caseback: PASSION FOR DIVING — LICENCE TO EXPLORE — OCEAN BREATH — PROTECT WHAT YOU LOVE — IMMERSE YOURSELF.
The NATO strap is constructed from recycled fishing nets removed from the sea — colour-coordinated to the Atlantic Ocean's rich blue palette and finished with Bioceramic pin buckle and loops that match the case perfectly. A sustainability statement as considered and deliberate as every other detail on this watch.
Water resistant to 91 metres — exactly 50 fathoms — with a 90-hour power reserve, an anti-magnetic Nivachron hairspring and automatic winding. A genuine Swiss Made automatic diver's watch at a price that has no precedent in the history of Swiss watchmaking.
The most universally wearable, most immediately striking and most classically correct model in the Scuba Fifty Fathoms collection. If you're starting your collection with one — start here.
Key Specifications:
- Case Material: Bioceramic (two thirds ceramic, one third biosourced material derived from castor oil)
- Case Diameter: 42.3mm
- Case Height / Thickness: 14.4mm
- Movement: Swatch SISTEM51 Automatic
- Power Reserve: 90 hours
- Frequency: 21,600 beats per hour (3 Hz)
- Functions: Hours, minutes, seconds and date (4–5 o'clock position)
- Water Resistance: 91 metres / 50 fathoms
- Crystal: Biosourced glass with anti-scratch coating (display caseback: sapphire)
- Bezel: Unidirectional rotating Bioceramic, 120-click
- Hairspring: Anti-magnetic Nivachron
- Strap: NATO — recycled fishing nets; Bioceramic pin buckle and loops
- Lug Width: 21.7mm
- Dial: Rich blue gradient, multi-layer print, Arabic and triangular-shaped hour markers, date window
- Luminous Material: Grade A Super-LumiNova
- Reference: SO35A100
