Citizen Eco-Drive OnevsPraesidus Jungle Field A-11 JFV

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 Praesidus Jungle Field A-11 JFV is praised for its modern take on a classic military design, featuring a well-proportioned 38mm sandblasted steel case and 100m water resistance. It is powered by a Miyota 9039 automatic movement, which is rated for accuracy between -10/+30 seconds per day and offers a 42-hour power reserve. The watch includes a no-date dial with beige Super-LumiNova and a double-domed sapphire crystal. On balance, reviewers highlight the Praesidus Jungle Field A-11 JFV as a well-proportioned field watch offering vintage charm at a $550 price point.