The limited edition Citizen Eco-Drive PHOTON BJ6569-59X celebrates 50 years of Eco-Drive innovation with a design shaped by light itself. Inspired by the famous Double Slit Experiment, its extraordinary dial layers two slitted metal plates beneath a further slitted cover, creating a richly dimensional interference pattern. A structural colour film placed above the solar cell sends shifting shades shimmering through the dial slits as the viewing angle changes, while warm amber-yellow and deep DLC finishes bring dramatic contrast to the 39.6mm Super Titanium case and bracelet. Anti-reflective sapphire crystal protects this captivating display within a beautifully slender 9.9mm profile. Produced in a strictly limited worldwide edition of just 5,000 pieces, each watch is individually marked with its edition number on the case back. Inside, the next-generation Calibre E036 Eco-Drive movement converts natural and artificial light into energy, running for approximately one year from a full charge when used in power-save mode. Accurate to within 15 seconds per month and water resistant to 5 bar, the Citizen BJ6569-59X transforms the science of light into a rare and arresting tribute to half a century of innovation. • Powered by the Eco-Drive Calibre E036 movement, which harnesses light from both natural and artificial sources. • Presented on a grey titanium bracelet with push button deployment clasp • Scratch resistant sapphire crystal glass with anti-reflective coating • 39.6mm case width • 50 metre water resistance