Side by side

Spinnaker Dumas AutomaticvsSeiko 5 Sports SNXS series

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

Dumas Automatic
SpinnakerDumas Automatic
MSRP $239
5 Sports SNXS series
Seiko5 Sports SNXS series
MSRP $415

At a glance

15 of 29 specs differ
Diameter
Dumas Automatic44mm
5 Sports SNXS series37.4mm
Power Reserve
Dumas Automatic40h
5 Sports SNXS series41h
Water Resistance
Dumas Automatic300m
5 Sports SNXS series100m
MSRP
Dumas Automatic$239
5 Sports SNXS series$415

Full specifications

Case

7 specs
Category
Diver
Sport
Diameter
44mm
37.4mm
Thickness
15mm
12.5mm
Lug-to-Lug
48mm
44.7mm
Lug Width
22mm
18mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
300m
100m

Crystal & Dial

4 specs
Crystal
Sapphire
Hardlex
Crystal Shape
Flat
Curved
Dial Color
Blue
Black
Lume
None
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
SII NH35A
4R36
Power Reserve
40h
41h
Jewels
25
24

Pricing

1 specs
MSRP
$239
$415

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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 5 Sports SNXS series

Owners widely praise the Seiko 5 Sports SNXS series for its attractive sunburst dials, vintage aesthetic, and excellent value, with many highlighting its comfortable wearability. Reviewers and owners consistently flag the stock bracelet as a significant weakness, often described as jangly, hair-pulling, and difficult to adjust, with a flimsy clasp. The Hardlex crystal is noted as being prone to scratching, and the caseback is described as thick, contributing to a bulky appearance. Accuracy with the movement is reported to be variable, ranging from +/- 1-2 seconds per day to +/- 20 seconds or more, and the movement itself lacks hacking and hand-winding. On balance, owners and reviewers rate the Seiko 5 Sports SNXS series highly for its stunning dials and value, despite significant criticisms of its bracelet and movement limitations.

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