New: Blancpain Fifty Fathoms Tech :

Blancpain releases the new Fifty Fathoms Tech (Ref. 5019A 12B30 94A), featuring the world-first 3-hour bezel complication now in a non-limited production model. It adds a date function and new tool-free interchangeable strap system to the patented 3-hour bezel first introduced on the 2023 Gombessa limited edition, powered by the in-house Calibre 13P5A with 120-hour power reserve, in a 47 mm Grade 23 titanium case. Price: CHF 20,500.

Press Release information with commentary in italics.

New: Blancpain Fifty Fathoms Tech

The Blancpain Fifty Fathoms Tech retails at CHF 20,500.

Commentary

The 3-hour bezel is the most interesting thing about this watch. Blancpain took the GMT complication; a mechanism designed around a 24-hour cycle and reworked it to complete a full rotation every three hours instead. That gives technical divers using closed-circuit rebreathers a dedicated hand they can actually track across a long dive, which a standard 60-minute bezel cannot do. The mechanism first appeared on the 2023 Gombessa 70th Anniversary Act 2 limited edition; the Ref. 5019A brings it into the permanent collection for the first time.

The rest of the specification is coherent. The absolute black dial, which absorbs up to 97% of ambient light, reduces distraction underwater. The two-colour lume system uses blue for the dive-related indications and green for the time, which makes practical sense when you need to read them quickly under pressure. The 120-hour power reserve is useful for multi-day expeditions and removes the anxiety of wearing it as a daily driver without winding every night.

At CHF 20,500, this sits at the top end of what the Fifty Fathoms line typically commands, though the titanium case, in-house calibre, and a complication that is actually new justify some of that. The 47mm diameter is large even by dive watch standards, so it is worth trying on before committing.

Release Details

June 8 is the day the world turns its attention to the Ocean. For Blancpain, every day has been Ocean Day for more than two decades.

The Fifty Fathoms was born in 1953 as the first true diver’s tool watch. Today, the same spirit drives the new Fifty Fathoms Tech, and it drives the Blancpain Ocean Commitment, a program that has become one of the most consequential in marine exploration and preservation.

Fifty Fathoms Tech — The Tool Has Evolved

Blancpain invented the secured rotating bezel. It is not a decorative element, it is a genuine horological complication with a life-saving function: allowing a diver to measure elapsed time underwater, and to know exactly when to surface. For seventy years, that bezel has turned in 60-minute increments. In 2023, Blancpain made it evolve by introducing a patented three-hour bezel on the Fifty Fathoms Tech Gombessa 70th Anniversary Act 2, developed by Marc A. Hayek and Laurent Ballesta.

The 3-hour bezel, a world first, was born from a specific need. Modern technical diving, particularly with closed-circuit rebreathers (CCR), involves extended dives at depth: two, three hours or more. A 60-minute bezel is simply insufficient. By rethinking the movement, Blancpain adapted the GMT complication — traditionally a 24-hour mechanism — to rotate in three hours instead. The result is a dedicated 3-hour hand and scale that gives technical divers, underwater photographers and scientists the precision they need, across the full duration of a dive.

The Ocean Taught Us Patience

The new Fifty Fathoms Tech gives divers the one thing marine life demands before it reveals itself: time. Marine life is acutely sensitive to the presence of divers. Fish, mollusks, crustaceans, the smallest organisms on a reef: they register the intrusion and alter their behavior accordingly. The shorter the dive, the more disrupted the observation. Extended bottom time changes everything. Given enough time at depth, marine life acclimatizes to the diver’s presence, relaxes, and resumes its natural behavior: feeding, moving, interacting as if no one were watching.

Unlike open-circuit scuba systems, rebreathers emit little to no bubbles during long dives, eliminating one of the most intrusive signals underwater. The diver becomes quieter, less conspicuous, and better able to blend into the environment. Combined with extended bottom time, this allows for a level of proximity and observation that would otherwise be impossible.

That is the moment the underwater photographer waits for. That is when science happens.

The 3-hour bezel is not merely a technical complication; it is the instrument that makes patient, non-invasive observation possible. The new Fifty Fathoms Tech is, above all, the diver’s watch best suited to documenting life as it actually lives.

The new Fifty Fathoms Tech builds on that 2023 breakthrough, now expanded with a date function for everyday legibility and a redesigned interchangeable strap system, tool-free, built around central lugs, and offered in orange rubber, with black or white rubber being available separately. The absolute black dial absorbs up to 97% of ambient light, while luminescence is deliberately differentiated: Super-LumiNova® with blue emission for all diving indications, and Super-LumiNova® with green emission for the regular time. In any light, at any depth, there is no confusion. The 47 mm Grade 23 titanium case offers 300-metre water resistance and a helium escape valve. Inside, the Manufacture calibre 13P5A — based on the proven Calibre 1315 — delivers a 120-hour power reserve. The watch is supplied in Blancpain’s Peli™ case: water-resistant, shock-resistant, reusable.

Blancpain Ocean Commitment — More Than 20 Years of Science in the Field

When Marc A. Hayek joined Blancpain, one of his first initiatives was to bring together leading underwater photographers for a diving event in Thailand, held as part of the 50th anniversary of the Fifty Fathoms in 2003, and to initiate with PADI a citizen science program for the identification of whale sharks. That instinct — to use the diving community as a scientific resource, and to support projects with genuine potential — has defined the Blancpain Ocean Commitment ever since. Four milestones from 2025–2026 illustrate what that commitment looks like in practice.

1 — PADI: The Largest Partnership in the History of the Organisation

What began in 2003 as a citizen science pilot has grown into the most significant partnership PADI has ever formed with a private organisation. Blancpain has strengthened its long-standing partnership with PADI through the launch of the Global Shark & Ray Census, a global citizen-science initiative mobilizing divers to monitor vulnerable shark and ray species worldwide. As founding partner of the Census and strategic partner of the PADI Blueprint for Ocean Action, Blancpain also supports a new Shark & Ray Conservation Specialty Course, reinforcing Adopt the Blue, PADI’s flagship marine protected area program initiated by Blancpain.

2 — Sulubaï: A Research Center at the Heart of a Network of 8 Marine Protected Areas

In 2025, Blancpain inaugurated the Blancpain × Sulubaï Marine Research Center in Shark Fin Bay, in the Philippines, strategically positioned near the marine protected areas established with Blancpain’s support over the past decade. Since its opening, the network has expanded from five to eight marine protected areas. The center serves as a hub for youth education, for training local fishing communities in sustainable practices, and for involving local decision-makers in the management of their own marine ecosystems.

3 — Tamataroa: 6 Years of Expeditions, One PhD, One Endangered Species

The Tamataroa project, a joint initiative by the Mokarran Protection Society and Gombessa Expeditions, has now reached its final chapter. Six years of expeditions and the doctoral research of Tatiana Boube — whose PhD was initiated and funded by Blancpain — is generating the scientific evidence required to drive future management and protection measures for the critically endangered great hammerhead shark.

4 — Oceana: When Science Drives Protection

In 2025, Blancpain and Oceana completed a three-year scientific campaign in California’s Channel Islands, combining scientific diving surveys and environmental DNA sampling across 30 sites. The project documented more than 13,000 species. The data collected helped support key policy measures, including the phase-out of harmful set gillnets along the California coast.