Actor, Producer & Environmental Advocate — Aquaman | Game of Thrones | Dune

Jason Momoa's Serica 5303 PLD: Aquaman Wears the Watch Built for French Navy Bomb Disposal Divers

He plays the king of the ocean on screen. He is a UNEP Advocate for Life Below Water off it. He is 6'4", born in Honolulu, of Native Hawaiian, Samoan, German, Irish, and Pawnee descent, and is among the most physically imposing presences in contemporary cinema. On the wrist of Jason Momoa: not a Rolex, not a Hublot, not a Richard Mille — but a Serica 5303 PLD, a €1,690 French microbrand dive watch built in collaboration with the French Navy's Explosive Ordnance Disposal divers, limited to 500 pieces, and fully amagnetic so it cannot trigger the bombs its intended wearers are trying to defuse.

Jason Momoa — Serica 5303 PLD on wrist. Source: YouTube

Serica 5303 PLD — dual-scale ceramic bezel, "fat lollipop" seconds hand, amagnetic black dial

▶ Source: YouTube

Joseph Jason Namakaeha Momoa was born August 1, 1979, in Honolulu, Hawaii, to a Native Hawaiian father and a mother of German, Irish, and Pawnee descent. He was raised in Norwalk, Iowa, by his mother, and returned to Hawaii as a young adult to pursue modelling and acting. His early television career included Baywatch Hawaii (1999–2001) and recurring roles before he joined the cast of Stargate: Atlantis (2005–2009) as Ronon Dex — a warrior from a world decimated by the Wraith, defined by physical capability and laconic intensity. The role established the qualities that would carry him through the rest of his career: a physical presence that reads as genuinely formidable rather than costumed, and an ability to project authority without dialogue.

The performance that made him a cultural phenomenon was Khal Drogo in Game of Thrones (Season 1, 2011) — the Dothraki warlord who speaks almost no English in the first season, communicates primarily through presence and physicality, and whose death in the tenth episode remains one of the series' most affecting moments. The role generated a level of global audience recognition that his subsequent career has sustained across Conan the Barbarian (2011), Aquaman (2018, the DC Universe's highest-grossing film at the time of its release), Dune (2021) as Duncan Idaho, and appearances in the Fast & Furious franchise. He runs his own production company, Pride of Gypsies, and directed Road to Paloma (2014). He is a designated UNEP Advocate for Life Below Water — an environmental advocacy role focused on ocean conservation that aligns directly with both his Hawaiian heritage and his most famous film role.

The Serica 5303 PLD on his wrist is, in the context of his public profile, a remarkable choice. Momoa is the actor the watch industry would most naturally expect to be in a Richard Mille or an oversized Hublot — a watch calibrated to his physical scale and cultural presence. Instead: a 39mm French microbrand dive watch, priced at €1,690, that most of the watch-buying public has never heard of, built for an audience of professional military divers who need their instrument to be invisible to unexploded ordnance. Spot.Watch is delighted to have found it.

"Full amagnetic construction — to avoid triggering explosives." — Serica 5303 PLD specification, developed with the Amicale des Plongeurs Démineurs

The Most Unexpected Watch in the Archive

The watch industry's relationship with celebrity is largely transactional: a brand identifies a public figure whose image aligns with the collection's positioning, a deal is negotiated, and the celebrity is photographed at events in the relevant timepiece. This produces predictable results — certain actors in certain Swiss brands, athletes in certain sports watches, musicians in certain avant-garde pieces. The pattern is so established that departures from it are immediately notable.

Jason Momoa wearing a Serica 5303 PLD is a significant departure. Serica is a French microbrand founded in 2017 with no celebrity ambassador programme and no marketing budget calibrated for Hollywood. The 5303 PLD is a 500-piece limited edition priced at €1,690 — less than the service cost of the Swiss luxury watches that most actors of Momoa's profile wear. It is built for EOD divers: people who require non-magnetic instrumentation because they are in proximity to devices that can be triggered by metal objects. It is, in other words, a watch whose design decisions are determined by the requirement not to die. Momoa found it, acquired it, and wore it — apparently without any commercial motivation — making him one of the most credible watch spotters in the Spot.Watch archive.

Aquaman's Real Dive Watch

The editorial alignment is almost too good. Jason Momoa plays the king of Atlantis — the cinematic world's most prominent aquatic superhero — and serves as a United Nations advocate for ocean conservation. His relationship with water, both on screen and in his stated values, is genuine and well-documented. The Serica 5303 PLD is a dive watch built for people whose relationship with water is the most serious version that exists: French Navy combat divers who work in environments where their instruments must not, under any circumstances, introduce a new hazard. The watch is not chosen for its aesthetics (though the vintage-French-Navy aesthetic is excellent). It is chosen because it works correctly in the most demanding water environment conceivable. Momoa wearing it is either a deeply considered horological statement or a coincidence of values so precise that it does not matter which it is. Either way, at Spot.Watch, this is exactly the kind of wrist worth noticing.

And at Spot.Watch — that's always worth noticing.