Citizen Eco-Drive OnevsVaer Design Navy Solar

The Citizen Eco-Drive One is widely celebrated for its groundbreaking thinness, with multiple sources confirming its status as the world's thinnest light-powered watch, measuring between 2.98mm and 3.5mm. Owners and reviewers alike praise its exceptional lightness, titanium construction, and good build quality that avoids feeling flimsy, noting its "wow factor" and superb finishing. The watch features a proprietary, ultra-thin Eco-Drive quartz movement and a synthetic sapphire dial, with some models offering up to 12 months of power reserve. However, its high price, ranging from $3,500 to $5,000, is a significant drawback for some, and its aesthetic is considered too plain or dated by a minority who prefer other Citizen models. The Citizen Eco-Drive One is also noted for lacking a seconds hand and having only splash-resistant water protection.

The Vaer Design Navy Solar is praised for its very good fit and finish, pleasant aesthetics, and the practical addition of a screw-down case back and crown. Owners report the lume is bright and the watch is comfortable, even when worn overnight. Overall, owners rate the Vaer Design Navy Solar highly for its comfortable wearability and bright lume.