Timefactors Speedbird III PRS-22vsTuseno Shellback
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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.

Speedbird III PRS-22

Shellback
Diameter
39mm
40mm
Lug-to-Lug
46mm
lowest
47mm
Thickness
11.7mm
lowest
11.9mm
Water Resistance
100m
200m
highest
MSRP
$651
lowest
$840
Movement
Sellita SW200-1
Sellita SW200-1
Case
4 specsCrystal & Dial
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
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.
Tuseno Shellback owners and reviewers widely praise its outstanding value and brilliant execution, highlighting its well-laid-out dial, crisp finishing, and balanced design. The sandwich dial, particularly the white and blue variants, is a frequent point of admiration, with one owner noting the lume appears light blue. The watch offers a substantial feel at 153 grams on the bracelet and a comfortable 40mm diameter, featuring a toolless micro-adjustment mechanism. While one reviewer noted a stiff bezel action, another owner described exceptionally crisp bezel action with zero play. Sources mention a Sellita SW200-1 or Ronda R150 movement, with one noting the Ronda's stated accuracy of ±12 seconds per day and 40-hour power reserve. Overall, owners and reviewers rate the Tuseno Shellback highly for its exceptional value and standout dial design.
The build quality is cited as a significant strength. Availability is a weakness, with stock running low.
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