Citizen produces various collections of watches, including its Eco-Drive, Signature and Drive collections. The Satellite Wave - World Time GPS, part of the Eco-Drive collection, includes global positioning system timekeeping with worldwide reception, world time in 40 time zones and a perpetual calendar. Citizen's Signature collection includes its Moon Phase Flyback Chrono watch with a 1/5-second chronograph measuring up to 12 hours and luminous hands. Women's watches include the Circle of Time with diamonds circling a mother-of-pearl dial.
In addition to its three primary collections, Citizen also produces several other collections such as the Winter White, Citizen L and Promaster Collections. The Winter White Collection 2016 includes the Endeavor and Axiom watches. The Endeavor is a nautically-inspired design with a metallic silver white dial. The watch face of the Axiom, for women, is edge to edge glass set in rose gold tone stainless steel with a white leather strap. Citizen produces the slimmest LCD watch and claims production of the first professional dive watch with an electronic depth sensor and the first voice recognition watch.
Other Citizen technologies include atomic timekeeping and its light-driven eco-drive. In 1970, Citizen introduced a solid titanium, light-weight hypo-allergenic watch and has since trademarked a surface hardening technology to create its Super Titanium, which has more than five times the hardness of stainless steel, according to the company's website.