Citizen Eco-Drive OnevsPraesidus DD-45 Hangar Midnight

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 DD-45 Hangar Midnight is lauded for its unique, two-year-developed "Patina" dial, designed to authentically mimic aging on indices and hands, with reviewers highlighting its 38mm stainless steel case as ideal for wearability and its vintage aesthetic. Reviewers note solid finishing and a well-made leather strap, alongside a robust 100-meter water resistance. However, the "A-11" caseback engraving is seen by some as a departure from strict authenticity, and the lume is less bright than anticipated due to the aging treatment. The Swiss Landeron L24 movement's hand-winding action is described as jerky. On balance, reviewers find the Praesidus DD-45 Hangar Midnight a compelling vintage-inspired watch, primarily due to its unique dial development and wearable case size.