Side by side

Spinnaker Dumas AutomaticvsSeiko Coutura

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

Dumas Automatic
SpinnakerDumas Automatic
MSRP $239
Coutura
SeikoCoutura
MSRP $625

At a glance

13 of 29 specs differ
Diameter
Dumas Automatic44mm
Coutura45.3mm
Power Reserve
Dumas Automatic40h
Coutura40h
Water Resistance
Dumas Automatic300m
Coutura100m
MSRP
Dumas Automatic$239
Coutura$625

Full specifications

Case

7 specs
Category
Diver
GMT
Diameter
44mm
45.3mm
Thickness
15mm
11.5mm
Lug-to-Lug
48mm
46mm
Lug Width
22mm
12mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

2 specs
Dial Color
Blue
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
SII NH35A
8B92
Type
Automatic
Quartz
Jewels
25
10

Pricing

1 specs
MSRP
$239
$625

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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.

Spinnaker Dumas Automatic

Owners widely praise the Spinnaker Dumas Automatic for its attractive textured blue dial, applied indices, and well-finished case, noting its comfortable wearability due to a short lug-to-lug distance. Some owners flag the use of mineral crystal instead of sapphire and a bracelet with a learning curve and loose keeper. Overall, owners rate the Spinnaker Dumas Automatic highly for its aesthetics and case finishing at its price point.

Seiko Coutura

Owners widely report the Seiko Coutura's metal treatments are very wear-resistant, with one owner noting minimal scratching after six years. Reviewers and owners appreciate its solar-powered movement, perpetual calendar, and radio sync features, with some finding its unique, futuristic styling captivating and a great value, while others describe the dial as too busy or gaudy. Some owners find the watch large and complicated to set initially, and one owner experienced issues with the solar power reserve requiring constant light exposure. On balance, owners and reviewers rate the Seiko Coutura well for its durable construction and practical solar and perpetual calendar features, despite polarizing design opinions.

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