Side by side

Spinnaker Fleuss 40 AutomaticvsSeiko 5 Sports SKX series

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

Fleuss 40 Automatic
SpinnakerFleuss 40 Automatic
MSRP $450
5 Sports SKX series
Seiko5 Sports SKX series
MSRP $315

At a glance

13 of 29 specs differ
Diameter
Fleuss 40 Automatic40mm
5 Sports SKX series28mm
Power Reserve
Fleuss 40 Automatic40h
5 Sports SKX series40h
Water Resistance
Fleuss 40 Automatic150m
5 Sports SKX series100m
MSRP
Fleuss 40 Automatic$450
5 Sports SKX series$315

Full specifications

Case

7 specs
Category
Diver
Sport
Diameter
40mm
28mm
Thickness
11mm
11.2mm
Lug-to-Lug
47mm
33.1mm
Lug Width
20mm
14mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
150m
100m

Crystal & Dial

3 specs
Crystal
Sapphire
Hardlex
Dial Color
Coral
Black
Lume
None
LumiBrite on hands and index(es)

Movement

2 specs
Caliber
SII NH35A
2R06
Jewels
25
21

Pricing

1 specs
MSRP
$450
$315

Follow this matchup

Get a note when Spinnaker Fleuss 40 Automatic vs Seiko 5 Sports SKX series gets more votes, a community discussion, or a price drop. No account needed.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Spinnaker Fleuss 40 Automatic

Owners find the Spinnaker Fleuss 40 Automatic a good size for smaller wrists, though one owner notes the lume is too diffuse for easy nighttime reading. The pilot-style crown is an unusual feature for a dive watch. Overall, owners value the Spinnaker Fleuss 40 Automatic for its wearability on smaller wrists.

From video reviewers

The coral red dial is a unique aesthetic. The watch is a strong contender for best-in-class under $300.

Seiko 5 Sports SKX series

Owners widely praise the Seiko 5 Sports SKX series for its iconic dive watch design, robust build, and excellent value, with many appreciating its timeless styling and tool-like character. The movement, while basic, is noted as offering hacking and hand-winding capabilities, and accuracy varies, with many owners reporting +/-5 to 10 seconds per day despite the movement's potential for +/-40 seconds. Some owners find the original SKX models heavier and bulkier than newer iterations, while others critique the lack of a screw-down crown and ISO rating on the newer Seiko 5 Sports SKX series, deeming it less of a serious tool watch. Overall, owners rate the Seiko 5 Sports SKX series highly for its enduring design and value proposition as a robust, everyday watch.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.