Sheffield 1AvsSeiko Seiko 5 Sports SKX series
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.
1A
Seiko 5 Sports SKX series
Diameter
40mm
38mm
Lug-to-Lug
46mm
44.2mm
lowest
Thickness
12.8mm
12.1mm
lowest
Water Resistance
200m
highest
100m
Power Reserve
n/a
41h
MSRP
$238
lowest
$350
Movement
Seiko NH35
Seiko 4R36
Case
4 specsCrystal & Dial
3 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Sheffield 1A owners praise its superb quality, sturdiness, and value, noting it feels more substantial than a Seiko 5. The blue dial is highlighted as a positive feature. One owner flagged expensive shipping fees as a drawback, and another suggested the bezel action could be crisper. Overall, owners consider the Sheffield 1A a no-brainer for its affordability and quality.
The Seiko 5 Sports SKX series is widely praised as an excellent value gateway watch, with owners and reviewers highlighting its solid build and powerful lume. The 22mm bracelet is noted for its comfort, and the watch offers numerous style options. Some owners find the original SKX models heavy and bulky, while others appreciate their ruggedness and iconic dive watch design. The Seiko 5 Sports SKX series offers an upgraded movement with hacking and hand-winding, and standard spring bars for easier strap changes. However, it lacks the screw-down crown and ISO certification of the original SKX, leading some to consider it less of a tool watch. On balance, owners and reviewers rate the Seiko 5 Sports SKX series highly for its value and modern features, despite some preferring the tool watch capabilities of its predecessor.
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