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Erebus Watches Ascent 40 GMTvsSeiko 5 Sports SKX series

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

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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.

Erebus Watches Ascent 40 GMT

Owners widely praise the Erebus Watches ASCENT for its stunning dial and excellent lume, with many finding it gorgeous and beautiful beyond comprehension. The watch is also noted for its comfortable wearability, attributed to its 40mm case, and the bracelet's micro-adjustable clasp and well-finished screws receive specific commendation. Some owners consider the Miyota 9075 movement excellent for the price, with one reporting accuracy of +1 second per day. However, import duties are a significant concern for some buyers, and the polished case sides are noted to lack a scratch-resistant coating. On balance, owners rate the Erebus Watches ASCENT highly for its aesthetic appeal and comfortable wearability at its price point.

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

11 of 29 specs differ
Diameter
Ascent 40 GMT40mm
5 Sports SKX series38mm
Power Reserve
Ascent 40 GMT
5 Sports SKX series41h
Water Resistance
Ascent 40 GMT100m
5 Sports SKX series100m
MSRP
Ascent 40 GMT$429
5 Sports SKX series$350

Full specifications

Case

4 specs
Category
Diver
Diameter
40mm
38mm
Thickness
12.4mm
12.1mm
Lug-to-Lug
46mm
44.2mm

Crystal & Dial

3 specs
Crystal
Sapphire
Hardlex
Dial Color
Malachite
Lume
BGW9 Super-LumiNova®
LumiBrite on hands and index(es)

Movement

3 specs
Caliber
Miyota 9075
Seiko 4R36
Power Reserve
41h
Jewels
0
24

Pricing

1 specs
MSRP
$429
$350
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