Side by side

Momentum M-Ocean EclipsevsSeiko 5 Sports SKX series

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

What people say

Owners + reviewers, side by side

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

Momentum M-Ocean Eclipse

Owners praise the Momentum M-Ocean Eclipse for its distinctive design and durable, lightweight build, making it a comfortable daily wearer. The bezel action is satisfying, and the watch offers excellent 200m water resistance. Some owners note that the lume could be improved, and there have been reports of issues with third-party customer service. Overall, owners rate the Momentum M-Ocean Eclipse highly for its aesthetic appeal and value.

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.

At a glance

13 of 29 specs differ
Diameter
M-Ocean Eclipse38mm
5 Sports SKX series38mm
Power Reserve
M-Ocean Eclipse40h
5 Sports SKX series41h
Water Resistance
M-Ocean Eclipse200m
5 Sports SKX series100m
MSRP
M-Ocean Eclipse$255
5 Sports SKX series$350

Full specifications

Case

5 specs
Category
Diver
Thickness
11.5mm
12.1mm
Lug-to-Lug
45.5mm
44.2mm
Lug Width
18mm
20mm
Water Resistance
200m
100m

Crystal & Dial

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

Movement

4 specs
Caliber
Epson VS22
Seiko 4R36
Type
Solar
Automatic
Power Reserve
40h
41h
Jewels
25
24

Pricing

1 specs
MSRP
$255
$350
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