Seiko Seiko 5 Sports SKX seriesvsZelos Blacktip 200m GMT
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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.

Seiko 5 Sports SKX series

Blacktip 200m GMT
Diameter
42.5mm
41mm
Lug-to-Lug
46mm
n/a
Thickness
13.6mm
13mm
lowest
Water Resistance
100m
200m
highest
Power Reserve
41h
n/a
MSRP
$495
lowest
$549
Movement
Seiko 4R34
Seiko NH34
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 widely praise the Seiko 5 Sports SKX series for its iconic, tough, and rugged dive watch design, timeless styling, and tool-like nature, with many finding its build quality and finishing superior to alternatives. The comfortable jubilee bracelet is frequently cited as a positive wearability feature. Accuracy with the 4R34 movement is a "luck of the draw," with specs allowing +/-40 seconds per day, though many owners report +/-5 to 10 seconds. Some owners experienced issues like scratched crystals, failed springbars, or misaligned bezels and hands. The Seiko 5 Sports SKX series is seen as a decent watch, readily available under £200, but not a serious tool watch like its predecessor due to lacking a screw-down crown, bezel pip, and ISO rating. Overall, owners rate the Seiko 5 Sports SKX series highly for its iconic design and value, despite some lacking modern features.
Owners widely praise the Zelos Blacktip 200m GMT's rock-solid bracelet and great bezel action. The watch has sold out quickly and is unavailable from the brand. Overall, owners rate the Zelos Blacktip 200m GMT highly for its robust build and desirability, evidenced by its rapid sell-out status.
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