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Brand Stories
From the 1976 Crystron Solar Cell to today's Caliber 0100.
Citizen launched the Crystron Solar Cell in 1976 — the first analog watch powered by light. Sales were modest.
The Eco-Drive rebrand in 1995 changed everything. The new generation hid the solar cell under the dial (rather than as a visible panel), and battery life on full charge jumped to 180 days. Sales doubled within three years.
The 2019 Caliber 0100 is the most accurate Eco-Drive ever: ±1 second per year, beating most quartz chronometers. No batteries to change, no winding to do — just light.
Today Citizen has shipped over 100 million Eco-Drive watches worldwide.
