DOXA and Watches of Switzerland have joined forces once again to celebrate a shared passion for innovation and heritage. The result is the SUB 300 Carbon Seafoam Limited Edition, a bold take on a watchmaking icon that first surfaced more than half a century ago. Forged carbon lends the case a featherlight strength and a distinctly modern edge, while the spirit of the original remains firmly intact. The 42.5 mm case houses a pressure-resistant titanium inner casing, protecting a COSC-certified automatic movement with a 38-hour power reserve. Water-resistant to 300 meters, the watch features a domed sapphire crystal recalling the curved plexiglass of the very first SUB 300. A date at 3 o’clock, luminous markers treated with Super-LumiNova®, and the distinctive unidirectional bezel ensure functionality matches the rugged charm. Its defining flourish, however, is the sunray Seafoam-green dial, which is exclusive to Watches of Switzerland, complemented by a black FKM rubber strap with diving extension and an additional NATO strap in matching Seafoam tones. Limited to just 100 numbered pieces, each case back is engraved with the Watches of Switzerland logo. Presented in a Seafoam-green box, the SUB 300 Carbon Seafoam is available exclusively through Watches of Switzerland in the UK, US, and online.