Side by side

Citizen Eco-Drive OnevsSpinnaker Tesei Mille Metri GMT

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

Eco-Drive One
CitizenEco-Drive One
MSRP $2,995
Tesei Mille Metri GMT
SpinnakerTesei Mille Metri GMT
MSRP $559

At a glance

12 of 29 specs differ
Diameter
Eco-Drive One36.6mm
Tesei Mille Metri GMT44mm
Power Reserve
Eco-Drive One40h
Tesei Mille Metri GMT40h
Water Resistance
Eco-Drive One300m
Tesei Mille Metri GMT1,000m
MSRP
Eco-Drive One$2,995
Tesei Mille Metri GMT$559

Full specifications

Case

7 specs
Category
Dress
GMT
Diameter
36.6mm
44mm
Thickness
12mm
16mm
Lug-to-Lug
46mm
52mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
300m
1000m

Crystal & Dial

2 specs
AR Coating
Underside
Inner
Dial Color
White
Black

Movement

2 specs
Caliber
8845
Seiko NH34A
Type
Solar
Automatic

Pricing

1 specs
MSRP
$2,995
$559

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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 its status as the world's thinnest light-powered watch, measuring between 2.98mm and 3.5mm. Owners and reviewers alike praise its exceptional lightness, titanium construction, and good build quality that avoids feeling flimsy, noting its "wow factor" and superb finishing. The watch features a proprietary, ultra-thin Eco-Drive quartz movement and a synthetic sapphire dial, with some models offering up to 12 months of power reserve. However, its high price, ranging from $3,500 to $5,000, is a significant drawback for some, and its aesthetic is considered too plain or dated by a minority who prefer other Citizen models. The Citizen Eco-Drive One is also noted for lacking a seconds hand and having only splash-resistant water protection.

Spinnaker Tesei Mille Metri GMT

The Spinnaker Fleuss Midnight Black features a reliable and accurate Japanese TMI NH35 Automatic Movement with 3 Hands and Date. A potential drawback is the watch's relatively low 15 ATM water-resistance rating compared to other watches in its class. Reviewers disagree on the watch's suitability for larger wrists, with one reviewer noting a 43mm diameter and 51mm lug-to-lug fit, while the other mentions a 51mm lug-to-lug measurement.

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