Eco-Drive One
Eco-Drive One

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Eco-Drive One

Eco-Drive One



The line between design and technology just got smaller. Incredibly thin and the first of its kind, the Eco-Drive One has arrived in celebration of Citizen's 40 years of Eco-Drive Technology. It is the world's thinnest light powered watch at just 2.98mm*. The well thought out design of this timepiece is reflected in the detail of the watch components, with 85 components in a movement 1.00mm thin. This model features a 10 month power reserve, stainless steel case and bracelet with Duratect (surface hardening technology), black sapphire crystal dial with cermet (ceramic + metal) bezel and anti-reflective sapphire crystal. *Dimensions are nominal. Actual product size may be up to .22mm thicker. Caliber number 8826.

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We stand by the quality and craftsmanship of our timepieces. Every purchase comes with our 30-day, money-back guarantee so that you can be sure your new Citizen timepiece meets your expectations. We offer free returns for added convenience. 

Our 5 Year Limited Warranty accompanies your purchase on, Citizen retail stores, and authorized Citizen dealers. CZ Smart smartwatches are covered by a 2 Year Limited Warranty


Our Five-Year Limited Warranty about the Citizen 5 Year Warranty

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Mens, Bracelet



Case Size (mm)


Case Material

Silver-Tone, Stainless Steel


WR [Splash Resistant]


Anti-Reflective Sapphire Crystal


8826, 2 Hand

Setting Instructions FOR CALIBER 8826
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Eco-Drive One is rated 5.0 out of 5 by 2.
Rated 5 out of 5 by from Finest watch I've ever owned! I've been wearing my ultra-thin Eco-Drive One for a couple of months now and have come to the conclusion that it's hands down the most comfortable, accurate and stylish watch in my collection. From the thinness of the case to the smooth and supple feel of the steel link bracelet it almost feels as thin as my skin. I love it and am considering the model with the rose accented bezel. Steel bracelet or the exotic skin strap? That is the question that I need to answer for myself! I recommend this timepiece to anyone considering a watch for themselves or a gift to that special man in their life.
Date published: 2017-11-18
Rated 5 out of 5 by from Bulgari Beater? I have a modest watch collection and I prefer mechanical watches, so this was an unusual purchase for me. I am drawn to interesting dials and technical innovations, a mix of art and engineering. The production of a super-thin solar powered watch fascinated me. Positive: not only is the watch itself super thin, so is the very comfortable bracelet. Watch wears well, there's no shirt the Eco-Drive One can't tuck under. Simple looking but stylish dress watch. Readability is good. Bracelet sizing can be ordered from Citizen, a real plus that more watch companies should offer. Neutral: no second hand, but not a big loss. No date, which many prefer anyway for looks and simplicity. Negatives: accuracy seems a little off at first; time keeping benefits from a more substantial charge. Crown is miniature, which fits the thinness ambience but seems fragile. Bezel screw details are not luxury. Except for the noon indice, the rest are printed. Hands, like the screws and crown, are a bit toy-like. Overall, finish and details could be better. But those nits are so small that they don't intrude on the pleasure of wearing the watch. Is it a Bulgari Octo beater? No of course not, Bulgari's cost five or six times more to start, have marvelous in-house mechanical movements and have world-class finishing and detail. But considering it's price, the Eco-Drive One is darn good.
Date published: 2019-12-12
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