Side by side

Seiko 5 Sports SKX seriesvsZelos Skyraider 40 Skeleton

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
Skyraider 40 Skeleton
ZelosSkyraider 40 Skeleton
MSRP $1,999

At a glance

14 of 29 specs differ
Diameter
5 Sports SKX series28mm
Skyraider 40 Skeleton40mm
Power Reserve
5 Sports SKX series40h
Skyraider 40 Skeleton40h
Water Resistance
5 Sports SKX series100m
Skyraider 40 Skeleton50m
MSRP
5 Sports SKX series$315
Skyraider 40 Skeleton$1,999

Full specifications

Case

7 specs
Category
Sport
Skeleton
Diameter
28mm
40mm
Thickness
11.2mm
8.2mm
Lug-to-Lug
33.1mm
40mm
Lug Width
14mm
20mm
Material
Stainless Steel
Titanium
Water Resistance
100m
50m

Crystal & Dial

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

Movement

3 specs
Caliber
2R06
Swiss Skeletonised Marvin 700
Type
Automatic
Manual
Jewels
21
25

Pricing

1 specs
MSRP
$315
$1,999

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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

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 Skyraider 40 Skeleton

The Zelos Skyraider 40 Skeleton is noted for its skeletonized dial and the use of BGW9 and C3 Super-LumiNova for legibility. It is powered by a manual-wind ETA 6498 movement, offering a 44-hour power reserve. On balance, the Zelos Skyraider 40 Skeleton is seen as a cool-looking option, though availability is a factor.

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