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Citizen Eco-Drive Thermo watches were introduced in 1999 and use the temperature difference between the wearer's arm and the surrounding environment as a power source. The rare Eco-Drive Thermo watches use the Seebeck effect to generate thermo electricity that powers the electronic movement and charges the secondary power cell. In the sun or in ...
In the rare and discontinued Eco-Drive Duo series, the solar power was supplemented by an automatic quartz power source. One early model, called the Citizen Vitality, used the watch hands to drive a small electric generator, but was discontinued following complaints that the device could explode and cause wrist injuries.
In 1996, Citizen started to sell analog light-powered watches under the Eco-Drive name. [2] Since their introduction, photovoltaic devices have greatly improved their efficiency and thereby their capacity. Watchmakers have developed their technology such that solar-powered watches had by 2009 become a major part of their range. [3]
Citizen’s Eco-Drive technology makes these watches some of the most environmentally friendly on the market. Our Favorite Citizen Watches for Men: Eco-Drive, Sports Watches, Dress Watches ...
This model was an attempt to enter higher-priced markets (at a cost of around $1000 USD), but the technology failed to attract consumer interest and Citizen has since stopped making use of the unique movement. No other autoquartz powered watch from Citizen is known; all other Eco-Drive models only use solar power or thermal power. [citation needed]
Pages in category "Citizen Watch" The following 14 pages are in this category, out of 14 total. This list may not reflect recent changes. ...
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related to: citizen women's watches eco-drive automatic- 400 South Wilson Road, Sunbury, OH · Directions · (740) 965-4071
