Citizen Eco-Drive OnevsDefakto Mono

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.

The Defakto Mono is praised for its awesome, super minimalist design, with one owner finding it a versatile everyday/business-casual watch useful for weekends and holidays. However, it requires concentration to tell the specific time and is best suited for casual wear rather than daily use, though its minimalist style is appreciated. One owner noted a very light mark on the dial just above the center. Overall, owners appreciate the Defakto Mono for its minimalist style and versatility, despite its casual wear suitability.