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In the early 2000s, while wristwatch sales declined with the advent of cell phones and their timekeeping capability, demand for Citizen watches in North America remained robust. Where the first models offered hours, minutes, seconds and date features, ultimately the movements evolved to include a broad range of design features, including complex analog and digital-analog movements and the horological complications of chronographs, flyback chronographs and dive watches. In addition to the first three Eco-Drive models introduced in 1995, Citizen marketed numerous other Eco-Drive models during the 1990s, including the 6.05 mm (0.238 in) thick Eco-Drive Slim of 1996. The accuracy of the quartz movement was stated as within ± 20 seconds per month at a normal temperature range of 5 to 40 ☌ (41 to 104 ☏). The movement also featured an 'insufficient recharging' indicator. This battery type became available in the early 1990s, enabling an Eco-Drive 7878 movement to run 180 days on secondary power before requiring recharging via light exposure – a marked improvement in energy storage over previous light-powered watches. To store electrical energy the first Eco-Drive movements employed titanium lithium-ionrechargeable or secondary batteries. Though the Eco-Drive caliber 7878 movement solar cells remained slightly visible through the dial, the physical styling of the light-powered watch was no longer constrained by visible solar cells. By locating a sufficiently translucent dial material over the now more efficient solar cells, enough light could pass through the dial face to power the movement. Previous light powered watches from Citizen and other manufacturers had the solar cell(s) mounted directly on the dial.This innovation was enabled by marked improvements in thin film amorphous silicon solar cells, which, by the early 1990s had become significantly more efficient. This movement was the first light-powered movement where the solar cells could be mounted under the dial. The technical platform that made the Eco-Drive concept possible was the Eco-Drive caliber 7878 movement.
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The Eco-Drive concept introduced several technical refinements over previous solar powered watches, including light-capturing cells that could be made virtually invisible behind the dial instead of highly conspicuous, enhancing the appearance of the watch. Ĭitizen introduced the Eco-Drive line to Asia, Latin America, and Europe in 1995 and to the United States in April, 1996. As of 2007, the company estimated the drive system had eliminated the disposal of 10 million batteries in North America. Citizen Eco Drive Gn-4w-s-12g ManualĮco-Drive is a model range of watches manufactured and marketed worldwide by Citizen Watch Co., Ltd., powered primarily by light. Citizen Promaster GN-4W-S water resist, base metal, cadran.Ĭitizen Eco-Drive METAL AW1365-19P featuring a light-absorbing 'solar ring' instead of solar cell panels, allowing opaque metal dials to be used. Sapphire crystal (30) Glass (3) No details (33) Functions. These watches have quartz movements, are battery-powered, and vary in design from classic to sporty.
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Citizen's Basic series, also comprised of about 50 watches, is a bit more affordable, with most falling in the 100 euro range. Citizen Listing: £234 Citizen Radio Controlled Pilot, Reference number GN-4W-S Steel Quartz Condition Very good Year 2013 Watch with original bo. CITIZEN Navihawk A-T Chronograph Eco-Drive WATCH Wristwatch GN-4W-S-12G.Ĭitizen Eco-Drive Sapphire Chronograph Men's Steel. Item is like new and includes all original packaging and manuals. Results 1 - 48 of 94 - Citizen Navihawk UTC Eco-Drive JY8030-83E Wrist Watch for Men. Part 3 - Citizen Eco-Drive Perpetual Calendar WR 100 - Calibre 8700 - Duration: 6:59.
#Citizen eco drive gn 4w s 12g manual manual#
Citizen Eco Drive Gn 4w S Manual Johnny Tran.