Citizen Attesa ACT Line (CB3040-56H)

The CB3040-56H is a Japan-market Attesa, Citizen's line of titanium watches for business travel, and it fits more function into 9.7 mm than most watches manage at twice the thickness. The Eco-Drive H128 runs on light and sets itself from radio time signals in Japan, China, Europe and the United States. It keeps a perpetual calendar, shows world time across 24 zones, and has Citizen's Direct Flight function for switching to local time on arrival. Case and bracelet are Super Titanium, Citizen's name for titanium surface-hardened with its Duratect treatment, which the brand says is 40 percent lighter than steel and more than five times harder at the surface. The octagonal case is 39 mm across and the whole watch weighs 93 g. Citizen sells it in Japan at 99,000 yen including tax, so elsewhere it comes through an importer.

Written 28 September 2026 from Citizen Japan's product page.