Description
Citizen marks a monumental milestone — 50 years of Eco-Drive technology. This commemorative edition celebrates the innovation that made battery changes obsolete and changed watchmaking forever.
Design
Commemorative design honoring five decades of solar-powered watchmaking, with sapphire crystal and heritage-inspired touches.
Specs
- Movement: Eco-Drive solar
- Crystal: Sapphire
- Case: Various sizes
- Price: ~$3,100 (AQ4091-56W, limited 650 pieces)
- Complications: Date
What's Exciting
Eco-Drive literally changed how we think about watch power. This anniversary edition is a tribute to one of the most important innovations in modern horology.
Sources
All brand names, logos, and product images are trademarks of Citizen Watch Co.. Used for editorial commentary and review purposes under fair use. Specs verified against official brand sources and trusted publications as of April 2026.
History
Citizen was founded in 1918 in Tokyo, with the name chosen by the mayor of Tokyo to reflect watches accessible to all citizens of the world. In 1976, Citizen introduced the world's first analog solar-powered watch, originally marketed as "Crystron Solar Cell." The technology was rebranded "Eco-Drive" in 1995, converting any light source into energy stored in a rechargeable cell, eliminating battery replacements. Over five decades, Eco-Drive evolved from a novel concept into Citizen's core technology, powering everything from dress watches to 1,000m divers.
