Side by side

Citizen Eco-Drive OnevsHamilton American Classic Hamilton Necklace

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Eco-Drive One
CitizenEco-Drive One
MSRP $4,995
American Classic Hamilton Necklace
HamiltonAmerican Classic Hamilton Necklace
MSRP $775

At a glance

6 of 29 specs differ
Diameter
Eco-Drive One38.6mm
American Classic Hamilton Necklace15mm
Power Reserve
Eco-Drive One40h
American Classic Hamilton Necklace40h
Water Resistance
Eco-Drive One50m
American Classic Hamilton Necklace50m
MSRP
Eco-Drive One$4,995
American Classic Hamilton Necklace$775

Full specifications

Case

2 specs
Diameter
38.6mm
15mm
Thickness
3.88mm
8.05mm

Crystal & Dial

1 specs
AR Coating
Underside
Inner

Movement

2 specs
Caliber
8826
280.002
Type
Solar
Quartz

Pricing

1 specs
MSRP
$4,995
$775

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Citizen Eco-Drive One

The Citizen Eco-Drive One is widely celebrated for its groundbreaking thinness, with multiple sources confirming a case thickness of 2.98mm, making it the world's thinnest light-powered watch. Owners and reviewers alike praise its "wow factor," describing it as "svelte" and "beautiful" with a titanium case and bracelet that feels exceptionally light on the wrist. The Eco-Drive quartz movement offers a power reserve of up to 100 days, and its miniaturization is considered impressive. However, the price is noted as a significant barrier for some, and one owner finds its aesthetic too plain or dated. Servicing is restricted to authorized centers due to proprietary construction. Overall, owners and reviewers rate the Citizen Eco-Drive One highly for its extreme thinness and lightweight titanium construction.

Hamilton American Classic Hamilton Necklace

Owners widely praise the American Classic Hamilton Necklace for its elegant, dainty feel and the compliments it garners, with one owner selecting it for its American spirit, class, and budget-friendliness. The silver dial with gold hands and markings, and the Art Deco/Brutalist engraved lid are noted highlights. Some find the small size difficult to read, and one owner reports the strap is too short. Overall, owners rate the American Classic Hamilton Necklace highly for its elegant feel and attractive design details at an accessible price point.

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