Side by side

Citizen Eco-Drive OnevsLongines CONQUEST

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
CONQUEST
LonginesCONQUEST
MSRP $900

At a glance

19 of 29 specs differ
Diameter
Eco-Drive One38.6mm
CONQUEST41mm
Power Reserve
Eco-Drive One40h
CONQUEST40h
Water Resistance
Eco-Drive One50m
CONQUEST300m
MSRP
Eco-Drive One$4,995
CONQUEST$900

Full specifications

Case

8 specs
Category
Dress
Diver
Diameter
38.6mm
41mm
Thickness
3.88mm
11.8mm
Lug-to-Lug
46mm
51mm
Lug Width
20mm
21mm
Finish
Brushed and polished
Water Resistance
50m
300m
Caseback
Solid
Screw-down case back

Crystal & Dial

3 specs
Crystal Shape
Flat
Indices
Applied
Applied Arabic numerals and indexes
Lume
None
Super-LumiNova

Movement

7 specs
Caliber
8826
L157.3
Type
Solar
Quartz
Beat Rate
28,800 vph
25,200 vph
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds and date

Pricing

1 specs
MSRP
$4,995
$900

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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.

Longines CONQUEST

Owners widely praise the Longines CONQUEST for its excellent finishing, comfortable wearability, and strong value, with many highlighting its versatility and smooth hand-winding action. Specific points of praise include the clean design, 30 ATM water resistance, and curved lugs contributing to comfort. However, reviewers and owners consistently note the bracelet's lack of micro-adjustment and the lume is considered poor by multiple sources. Some find the design too simple, and one owner felt the watch was underwhelming in person. On balance, owners rate the Longines CONQUEST highly for its exceptional finishing and value at its price point.

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