Citizen Eco-Drive OnevsDryden Chrono Diver Gen 2

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.

Owners widely praise the Dryden Chrono Diver Gen 2 for its exceptional value and comfortable wearability, with particular appreciation for its refined PVD finish. The watch features a Seiko VK63 Meca-Quartz movement, improved lume, and solid bezel action, all housed in a 42mm case with recessed pushers and 100m water resistance. Some owners note the 49mm lug-to-lug may be large for smaller wrists. On balance, owners rate the Dryden Chrono Diver Gen 2 highly for its amazing value and comfortable wearability.