Side by side

Seiko 5 Sports SKX seriesvsZelos Mako 4

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 $315
Mako 4
ZelosMako 4
MSRP $529

At a glance

13 of 29 specs differ
Diameter
5 Sports SKX series28mm
Mako 440mm
Power Reserve
5 Sports SKX series40h
Mako 440h
Water Resistance
5 Sports SKX series100m
Mako 4300m
MSRP
5 Sports SKX series$315
Mako 4$529

Full specifications

Case

7 specs
Category
Sport
Diver
Diameter
28mm
40mm
Thickness
11.2mm
12.2mm
Lug-to-Lug
33.1mm
40mm
Lug Width
14mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

3 specs
Crystal
Hardlex
Domed Sapphire
Dial Color
Black
Diver - Flare
Lume
LumiBrite on hands and index(es)
None

Movement

2 specs
Caliber
2R06
Miyota 9015
Jewels
21
25

Pricing

1 specs
MSRP
$315
$529

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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

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.

Zelos Mako 4

Owners widely praise Zelos' dial finishing, with specific admiration for blued markers and hands, and the unique titanium bezel insert. Reviewers highlight the Mako 4's impressive case finishing and fully lumed ceramic bezel for its price point, noting the boxed sapphire crystal and wavy dial texture contribute to a vintage feel. The Sellita SW200 movement is described as reliable, with one owner reporting accuracy of -0.3 seconds per day. However, the crown can be difficult to grip, and the winding mechanism offers resistance when screwing down, while the watch's height may hinder wearability under a suit cuff. The tropic rubber strap is considered excellent, in contrast to a stiff leather option. On balance, owners and reviewers rate the Zelos Mako 4 highly for its exceptional dial and case finishing at its price point.

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