Citizen's Eco-Drive 50th Anniversary: New 'PHOTON' watches unveiled with advanced light-inspired designs

Japanese watchmaker Citizen is commemorating the 50th anniversary of its pioneering Eco-Drive technology, which harnesses light to power watches, with the launch of its new "PHOTON" limited edition collection. Introduced in 1976 following the oil crisis, Eco-Drive represented a significant step in sustainable and convenient timekeeping.

The "PHOTON" series, named after the smallest unit of light, draws inspiration from optical experiments, specifically the double-slit experiment. The watch dials feature a complex design with layered slit panels and structural color layers that refract light, creating interference patterns reminiscent of photons passing through slits. This design results in dynamic color shifts and light play when viewed from different angles, offering a futuristic and technologically advanced aesthetic.

Both models in the "PHOTON" collection utilize Citizen's proprietary titanium casing and feature an octagonal cushion shape that complements the avant-garde dial. The BJ6569-59X model pairs black with amber tones, while the BJ6560-53W showcases the natural color of titanium. Both are powered by Citizen's newly developed E036 Eco-Drive movement, boasting a remarkable 365-day power reserve on a full charge, capable of converting any light source into energy.

Table tennis star Lin Yun-ju, who wore the BJ6569-59X model at the launch event, praised its long power reserve for keeping him on schedule for training and expressed enjoyment in observing the dial's subtle light variations. Additionally, Citizen introduced two "blood moon" themed watches inspired by lunar eclipses. These models feature red accents on the bezel and dial, symbolizing the unique astronomical phenomenon. One includes satellite timekeeping (CC4077-71Z), while the other uses radio-controlled timekeeping (BY1005-73Z), both housed in black titanium cases and offering advanced functions.