Actor Antony Starr spotted wearing a Casio

In Guy Ritchie's 2023 war drama The Covenant, props and costume choices carry real narrative weight, and the decision to put Antony Starr's wrist in a Casio G-Shock GA2100 is no accident. The film follows a US Special Forces sergeant and his Afghan interpreter navigating hostile territory, and the GA2100's battlefield-ready reputation makes it a contextually precise choice — the kind of watch that actually turns up on operators who prioritize function over status.

The Casio G-Shock GA2100 sits at the intersection of genuine engineering and unexpected design sophistication. Introduced in 2020, it is built around Casio's Carbon Core Guard structure — a carbon fiber-reinforced resin case that dramatically reduces weight while preserving the G-Shock lineage's legendary shock resistance. The case measures 45.4mm across but wears deceptively slim at just 11.8mm, powered by Casio's Module 3459, a quartz analog-digital movement offering world time across 29 cities, stopwatch, countdown timer, and 200-meter water resistance. The octagonal bezel profile, borrowed aesthetically from haute horlogerie, arrives here in injection-molded resin.

The GA2100 became a collector phenomenon almost immediately after launch. Watch forums latched onto the Royal Oak silhouette resemblance, dubbing it the 'CasiOak,' and the reference spawned an entire cottage industry of aftermarket metal bracelet conversions and mod kits. For enthusiasts who appreciate design language divorced from price snobbery, the GA2100 represents one of the most interesting value propositions in contemporary watchmaking.

Antony Starr, who plays the psychopathic superhero Homelander in Amazon's The Boys, demonstrates real range with The Covenant role — and the GA2100 on his wrist signals a deliberate move away from theatrical excess toward utilitarian credibility. It is a watch chosen for character authenticity, not red-carpet optics.

On the market, the Casio G-Shock GA2100 remains one of the most accessible references in any serious discussion of modern watch design. Retail pricing sits well under $100 USD depending on colorway, and grey-market premiums are negligible given Casio's consistent supply. Its cultural footprint, however, far exceeds its price point.