Side by side

Seiko 5 Sports SKX seriesvsZelos Spearfish GMT

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

5 Sports SKX series
Seiko5 Sports SKX series
MSRP $350
Spearfish GMT
ZelosSpearfish GMT
MSRP $999

At a glance

13 of 29 specs differ
Diameter
5 Sports SKX series38mm
Spearfish GMT40mm
Power Reserve
5 Sports SKX series41h
Spearfish GMT40h
Water Resistance
5 Sports SKX series100m
Spearfish GMT200m
MSRP
5 Sports SKX series$350
Spearfish GMT$999

Full specifications

Case

6 specs
Category
Diver
GMT
Diameter
38mm
40mm
Thickness
12.1mm
13mm
Lug-to-Lug
44.2mm
40mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

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

Movement

3 specs
Caliber
4R36
Sellita SW330-2
Power Reserve
41h
40h
Jewels
24
25

Pricing

1 specs
MSRP
$350
$999

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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.

Seiko 5 Sports SKX series

The Seiko 5 Sports SKX series is widely praised for its value, robust build, and powerful lume, with owners appreciating its comfortable bracelets and improved movement featuring hacking and hand-winding. Some owners find the original SKX models heavy and bulky, while others praise their ruggedness and iconic dive watch design. Reviewers note the 38mm models offer great value at around €350 and are exemplary gateway watches, though their 100m water resistance without a screw-down crown makes them unsuitable for diving. The Seiko 5 Sports SKX series is seen as a decent watch, especially under £200, but lacks the tool watch capabilities of the original SKX, missing a screw-down crown, bezel pip, and ISO rating. On balance, owners and reviewers rate the Seiko 5 Sports SKX series well for its blend of value, improved movement, and tool-watch aesthetic, despite some missing dive certifications.

Zelos Spearfish GMT

The Zelos Spearfish GMT is widely praised for its exceptional value, with reviewers highlighting its superb finishing, flawless machining, and a tool-less micro-adjustment clasp that exceeds its price point. It features a La Joux-Perret G100 movement with a 68-hour power reserve, achieving an average accuracy of +2.6 seconds per day, or a Miyota 9075 movement offering flier-style GMT functionality. The 40mm case and bidirectional 48-click ceramic bezel are well-executed, though one reviewer noted a minor compromise in the end link fit. Overall, owners and reviewers rate the Zelos Spearfish GMT highly for its impressive finishing and value proposition.

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