Side by side

Citizen Eco-Drive OnevsLorier Neptune SIV

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
Neptune SIV
LorierNeptune SIV
MSRP $599

At a glance

10 of 29 specs differ
Diameter
Eco-Drive One38.6mm
Neptune SIV39mm
Power Reserve
Eco-Drive One40h
Neptune SIV40h
Water Resistance
Eco-Drive One50m
Neptune SIV200m
MSRP
Eco-Drive One$4,995
Neptune SIV$599

Full specifications

Case

5 specs
Category
Dress
Diver
Diameter
38.6mm
39mm
Thickness
3.88mm
Lug-to-Lug
46mm
Water Resistance
50m
200m

Crystal & Dial

2 specs
AR Coating
Underside
Inner
Dial Color
Blue
Standard

Movement

2 specs
Caliber
8826
Type
Solar
Automatic

Pricing

1 specs
MSRP
$4,995
$599

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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.

Lorier Neptune SIV

Owners widely praise the Lorier Neptune SIV for its versatile, vintage-inspired design featuring a glossy gilt-style dial and a comfortable, tapered bracelet, noting its affordability reduces wear anxiety. Reviewers and owners alike mention the acrylic crystal as a point of contention, with some preferring sapphire, and one owner finds the bracelet lacks the feel of more expensive options. On balance, owners and reviewers rate the Lorier Neptune SIV highly for its appealing vintage aesthetic and value proposition.

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