Lush, vivid and teeming with life. The Swatch x Blancpain Bioceramic Scuba Fifty Fathoms in Indian Ocean is the most nature-inspired and organically beautiful model in the entire five-piece collection — a deep, vibrant green colourway that evokes the dazzling waters of its namesake with an immediacy and richness that makes it one of the most wearable and visually satisfying pieces in the Scuba Fifty Fathoms lineup.
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.
The Indian 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, sitting alongside the Arctic and Antarctic as one of the most distinctive and immediately recognisable models in the collection. The deep green Bioceramic case and crown are inspired directly by the Nembrotha Kubaryana — one of the most strikingly coloured and visually dramatic nudibranchs found in the Indian Ocean, whose bold green tones and contrasting black and orange markings have made it one of the most celebrated creatures in underwater photography. Every shade of green on this watch traces back to that single, extraordinary animal.
The gradient dial is printed in multiple rich layers of deep green tones with contrasting sandy beige and black accents, creating a colour story that brings to mind coral reefs teeming with marine life just below the surface. 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 Indian Ocean and the Nembrotha Kubaryana nudibranch in full, vivid colour, making the caseback of the Indian Ocean one of the most visually spectacular in the entire collection. 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 Indian Ocean's rich green 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.
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: Deep green gradient, multi-layer print, Arabic and triangular-shaped hour markers, date window
- Luminous Material: Grade A Super-LumiNova
- Inspired By: Nembrotha Kubaryana nudibranch — Indian Ocean
- Reference: SO35I100
