Citizen Eco-Drive OnevsIXDAO Dress Watch
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Eco-Drive One

Dress Watch
Diameter
36.6mm
36.8mm
Lug-to-Lug
n/a
45.5mm
Thickness
4.5mm
lowest
9.7mm
Water Resistance
n/a
50m
MSRP
$2,995
$279
lowest
Movement
Citizen 8845
Seiko VD78
Case
5 specsCrystal & Dial
2 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Citizen Eco-Drive One is widely praised for its status as the world's thinnest light-powered watch, with sources consistently citing its remarkable 2.98mm case thickness and 1mm movement. Owners and reviewers highlight its "wow factor," good build quality, and light weight due to titanium construction, with finishing compared favorably to higher-end models. The watch features a synthetic sapphire dial and a cermet bezel for protection. Some users note the absence of a seconds hand and basic functionality due to the miniaturized movement. While one source mentions a 100-day power reserve, another states it can run for 12 months on a full charge. The price is noted as $3,500 to $5,000, considered reasonable by some for the technology. However, its high price and splash-resistant water rating are seen as drawbacks by some, and a few find its aesthetic too plain, preferring other Citizen models.
Owners widely praise the IXDAO 36.8mm VD78 Quartz Dress Watch for its clean dial, elegant proportions, and surprisingly good polishing on hands and markers, especially considering its $300 price point, with some calling it their best watch yet. The green color and emblem are also highlighted as positives. However, some owners note a non-recessed seconds dial on the white and silver model as a disappointment, and the 22mm lug width is considered inconvenient by some. One owner reported a slightly misaligned bezel on a specific variant, though they also praised the high overall quality, bright lume, and unique bracelet. IXDAO is generally positioned in quality and specs slightly below San Martin, comparable to Octopus Kraken and Sugess/Seestern. Overall, owners rate the IXDAO 36.8mm VD78 Quartz Dress Watch highly for its impressive finishing and design at an accessible price point.
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