Timefactors Speedbird III PRS-22vsTimefactors Speedbird PRS-51
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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

Speedbird PRS-51
Diameter
39mm
36mm
Lug-to-Lug
46mm
42mm
lowest
Thickness
11.7mm
11.4mm
lowest
Water Resistance
100m
100m
MSRP
$651
$436
lowest
Movement
Sellita SW200-1
Miyota 9015
Case
4 specsCrystal & Dial
1 specsMovement
1 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.
Owners widely praise the Timefactors Speedbird PRS-51 for its value and classic pilot's watch aesthetic, noting its beautiful AR sapphire crystal and minimalistic dial. The 36mm case is described as wearing thinner than expected, though some find the 5-link bracelet stiff or heavy, while others praise its drape and articulation. Accuracy figures vary, with some reporting impeccable timekeeping and others noting deviations of +7 to +10 seconds per day from the Miyota 9015 movement. Overall, owners rate the Timefactors Speedbird PRS-51 highly for its attractive flieger design and excellent value at its price point.
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