Side by side

Seiko Prospex SPEEDTIMER MechanicalvsTimefactors Speedbird III PRS-22

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Seiko Prospex SPEEDTIMER Mechanical

The Seiko Prospex SPEEDTIMER Mechanical is praised for its visually appealing design and comfortable wearability, with owners frequently using its chronograph function for daily tasks. Reviewers note its clean dial layout and LumiBrite treated hands and markers, and one source highlights the 72-hour power reserve of the 6R55 movement. However, some owners criticize its chronograph functionality and the 24-hour subdial. On balance, owners and reviewers rate the Seiko Prospex SPEEDTIMER Mechanical highly for its daily usability and refined aesthetics.

Timefactors Speedbird III PRS-22

Owners widely praise the Timefactors Speedbird III PRS-22 for its exceptional finishing, casework, and value, with multiple owners calling it the finest watch under $1000 and noting its quality rivals that of IWC. Specific highlights include applied indices, a screw-down crown, and a comfortable bracelet. Some owners report the lume fades quickly, and the short lugs can make strap changes difficult. The watch features a Sellita SW200-1 automatic movement and a 39mm case. Overall, owners rate the Timefactors Speedbird III PRS-22 highly for its impressive build quality and design at its price point.

At a glance

12 of 29 specs differ
Diameter
Prospex SPEEDTIMER Mechanical39.5mm
Speedbird III PRS-2239mm
Power Reserve
Prospex SPEEDTIMER Mechanical72h
Speedbird III PRS-22
Water Resistance
Prospex SPEEDTIMER Mechanical200m
Speedbird III PRS-22100m
MSRP
Prospex SPEEDTIMER Mechanical$995
Speedbird III PRS-22$651

Full specifications

Case

5 specs
Category
Chronograph
Diameter
39.5mm
39mm
Thickness
12mm
11.7mm
Lug-to-Lug
44.5mm
46mm
Water Resistance
200m
100m

Crystal & Dial

3 specs
Crystal Shape
Curved
Flat
AR Coating
Anti-reflective coating on inner surface
Inner
Lume
LumiBrite on hands and index(es)
None

Movement

3 specs
Caliber
6R55
Sellita SW200-1
Power Reserve
72h
Jewels
24
25

Pricing

1 specs
MSRP
$995
$651
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