Side by side

Seiko 5 Sports SKX seriesvsZelos Comet 39

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
Comet 39
ZelosComet 39
MSRP $2,499

At a glance

14 of 29 specs differ
Diameter
5 Sports SKX series28mm
Comet 3939mm
Power Reserve
5 Sports SKX series40h
Comet 3940h
Water Resistance
5 Sports SKX series100m
Comet 3950m
MSRP
5 Sports SKX series$315
Comet 39$2,499

Full specifications

Case

7 specs
Category
Sport
Dress
Diameter
28mm
39mm
Thickness
11.2mm
7.6mm
Lug-to-Lug
33.1mm
39mm
Lug Width
14mm
20mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
50m

Crystal & Dial

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

Movement

3 specs
Caliber
2R06
ETA/Peseux 7001
Type
Automatic
Manual
Jewels
21
25

Pricing

1 specs
MSRP
$315
$2,499

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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 Comet 39

Owners widely praise the Zelos Comet 39 for its wearable 39mm size, thin profile under 10mm thanks to its manual-wind Sellita SW215 movement, and its captivating dial with a deep starburst effect. The winding action is described as a joy, and the watch is considered a stunner for its price, blending modern and vintage aesthetics. Some owners note frustration with Zelos's limited production runs leading to quick sell-outs. One owner found the logo childlike, while another experienced strap-rubbing issues with the short lugs, which were resolved with a Milanese bracelet. Overall, owners and reviewers rate the Zelos Comet 39 highly for its excellent value and striking dial design.

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