In 2018, Citizen is proud to celebrate 100 years of dedication to the production and advancement of watchmaking technology and high-quality timepieces. Since its foundation in 1918 the company has excelled in consistently setting some of the highest benchmarks in accuracy while introducing several horological milestones still valued by the watch world today. Among these, of course, is Citizen's Eco-Drive technology, which was marked by the world's first analog quartz watch powered exclusively by light. Today, the natural progression of Citizen's commitment to accuracy is revealed in the latest iteration of Eco-Drive technology known simply as the Citizen Cal.0100 Eco-Drive Movement. With an annual accuracy of ±1 second, the Citizen Cal.0100 serves as the culmination of the brand's 100-year journey of producing truly amazing watches and cutting-edge technology.
Aside from temperature and gravitational variables, Citizen also accounted for the way shock could affect the accuracy of the Cal.0100. This is addressed by Citizen's proprietary Shock Counteraction Function, which locks the rotor before restarting the movement after significant shock and on-board automatic hand correction that constantly checks positioning. After detecting shock or any kind of deviation, this function corrects hand positioning so that it remains in line with the movement's precise display of time. These functions combined with the higher operating frequency, AT-cut crystal oscillator, and temperature correction features inevitably require a greater degree of power consumption. Understandable, since this is a movement that operates at a frequency 256 times higher than a standard quartz movement. Thus, Citizen was able to tweak, improve, and combine a range of their own proprietary technologies to achieve the accuracy and autonomy of the Cal.0100. No GPS connection, no radio signals, just the purest to-the-second expression of time in the most accurate form of Eco-Drive to date.
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