Seiko Seiko 5 Sports Field seriesvsTimefactors Speedbird III PRS-22
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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 Field series

Speedbird III PRS-22
Diameter
39.4mm
39mm
Lug-to-Lug
48.1mm
46mm
lowest
Thickness
13.2mm
11.7mm
lowest
Water Resistance
100m
100m
Power Reserve
41h
n/a
MSRP
$315
lowest
$651
Movement
Seiko 4R36
Sellita SW200-1
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.
The Seiko 5 Sports Field series is praised for its excellent legibility, featuring fully lumed Arabic numerals and a lumed pearl on the compass bezel. Reviewers note the reliable 4R36 movement and 10 bar water resistance, with some considering the watches good value under 500 euros. The GMT variants, specifically the SSK023 and SSK025, offer an accessible explorer watch with a GMT complication and a fixed 24-hour bezel. Overall, owners and reviewers rate the Seiko 5 Sports Field series highly for its legibility and value proposition.
Owners widely praise the Timefactors Speedbird III PRS-22 for its exceptional finishing and casework, often comparing it favorably to much more expensive brands. Specific highlights include the applied indices, substantial lume, comfortable bracelet, and screw-down crown. Some owners note that the watch's short lugs can make strap changes difficult. The movement, a Sellita SW200-1, is generally considered robust for a tool watch, though some owners expressed a preference for alternative movements. Overall, owners rate the Timefactors Speedbird III PRS-22 highly for its value and refined finishing, rivaling watches at significantly higher price points.
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