Citizen Eco-Drive OnevsDefakto Dialog
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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

Dialog
Diameter
38.6mm
40mm
Lug-to-Lug
n/a
46.8mm
Thickness
3.9mm
lowest
6.6mm
Water Resistance
50m
50m
MSRP
$4,995
n/a
Movement
8826
Ronda 712
Case
3 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 extreme thinness, with reviewers and owners consistently noting its case thickness around 2.98mm to 3.5mm, and its light weight, making it feel almost imperceptible on the wrist. The watch's "wow factor" and "svelte" design are frequently highlighted, alongside its "Super Titanium" case which is described as harder than stainless steel. Some owners find the aesthetic plain or dated, and the price is a significant barrier for many. The Eco-Drive quartz movement offers approximately 100 days of power reserve on a full charge. Overall, owners and reviewers rate the Citizen Eco-Drive One highly for its groundbreaking thinness and lightweight titanium construction.
Owners widely praise the Defakto Dialog for its extreme minimalism and grab-and-go design, with one owner noting its 40mm size enhances readability. The watch is also recognized for its solid quality for the value, featuring an in-house case by Ickler and a slim 6.6mm thickness. Some owners question the practicality of a single-hand watch for daily wear. Overall, owners rate the Defakto Dialog highly for its handcrafted, minimalistic aesthetic and value.
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