Aigi Watches Arctic TidevsSeiko 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.

Arctic Tide

Seiko 5 Sports SKX series
Diameter
40mm
38mm
Lug-to-Lug
n/a
44.2mm
Thickness
11.9mm
lowest
12.1mm
Water Resistance
200m
highest
100m
Power Reserve
n/a
41h
MSRP
$865
$350
lowest
Movement
Sellita SW200-1
Seiko 4R36
Case
6 specsCrystal & Dial
3 specsMovement
3 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners report the Aigi Arctic Tide's dial markers catch the light similarly to Grand Seiko dials, and one user noted a preference for its movement over an alternative. Some owners consider the 40mm case size comfortable, while others found a 43mm variant chunky. One owner received their watch with a Miyota 9015 movement upgrade, and another experienced issues with lume and alignment on their initial unit, receiving a replacement. On balance, owners view the Aigi Arctic Tide as a decent value at its Kickstarter price, with good on-paper specifications, though concerns exist regarding the brand's newness and potential for it to be a catalogue watch.
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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