![]() ![]() 2019: a Citizen Eco-Drive is the most precise wristwatch ever made.Īt Baselworld 2019, Citizen unveiled a timepiece that, by combining the Eco– Drive technology with multiple cutting-edge innovations, ensures a +/- one second per year accuracy, the Citizen Caliber 0100, a micro-engineering masterpiece. An Eco– Drive was the first watch ever to comply with the Eco Mark certification, introduced by the Japanese Environment Association (JEA) in 2014 Citizen was the first watch manufacturer to win the JEA‘s Eco Mark Gold Award. 98mm thick case that has a 1mm thick movement.Ĭitizen opted for a brand name that is synonymous with a virtually unstoppable run along with eco-friendliness no batteries had ever to be replaced, the only existing being those that store the energy converted from light. In 2016, the Citizen Eco– Drive technology celebrated its 40 th anniversary, and the Japanese watchmaker marked this achievement by introducing the remarkable Citizen Eco– Drive One, the pinnacle of the Eco– Drive technology, showcasing a 2. Please consider that a 2000 Citizen Eco-Drive AP0440-14F Diver‘ s 200m, like the one pictured below, had a power reserve of three months (photo source: Francis Flinch – Own work, Public Domain, ). They can capture the smallest light source nowadays, thus extending the maximum power reserve to a six– month total battery power when fully charged, and up to an outrageous seven years on radio-controlled models. Here is a listing on eBay: Citizen Quartz Crystron Solar Cell.Ĭitizen Eco-Drive: how it works and how it has evolved over the years.įrom that moment onwards, Citizen has painstakingly improved the Eco– Drive technology to increase power reserve, reliability and, what’s also important, make sure any Eco– Drive equipped watch might be capable of charging itself under any source of light, dim light included.Įngineers kept improving and miniaturizing the solar panels. That watch is a milestone of either analog and digital watchmaking and, from a collector’s perspective, is something you can buy at a rather affordable price too on the vintage second-hand market. It was 1976 when Citizen launched the first sunlight-powered analog watch, the Citizen Quartz Crystron Solar Cell, the precursor of all things Citizen Eco– Drive. Back then, Citizen watches began to explore sunlight-operated devices, envisioning the design of a battery change-free watch. ![]() However, if we had to highlight a quartz watch’s flaws, two were on top of the list at the time: a battery’s short lifecycle and a poor environment-friendly recycling process. When the so-called “ quartz crisis” shocked the industry in 1970, with Seiko leading the way with the Astron, the Swiss watchmaking industry partially converted to this technology, in an attempt to survive. Again, before digging into our most-loved Eco– Drive equipped timepieces, let’s first take a look at the history behind it. When it first came out, the Eco– Drive technology appeared on selected timepieces and has since then extended throughout the entire catalog, including the Citizen Promaster sports collection, and their diving, aviator, and exploration inspired watches. Let me here briefly introduce the story of the Citizen Eco– Drive technology, its pros and last but not least, a list of the most representative models equipped with this technology, in our opinion. ![]() It is a pillar of the Japanese watchmaker’s offering, that also includes mechanical low-end or high-end timepieces, marketed under the brand The Citizen, a direct competitor to Grand Seiko, exclusively available on the Japanese domestic market. The Citizen Promaster Eco-Drive Aqualand BN2037-11E 30th Anniversary.Ĭitizen Eco– Drive is a proprietary technology that sets Citizen watches apart from the competition.The Citizen Promaster Eco-Drive Professional Diver 1000 BN7020-09E.The Citizen Eco-Drive Promaster Aqualand Depth Meter BN2024-05E.The Citizen Eco-Drive Promaster Titanium Altichron BN4021-02E.The Citizen Eco Drive Promaster Altichron Cirrus BN5048-01E.Our Citizen Eco-Drive top-rated watch list.2019: a Citizen Eco-Drive is the most precise wristwatch ever made.Citizen Eco-Drive: how it works and how it has evolved over the years. ![]()
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