Side by side

Timefactors PRS-29AvsTimefactors Speedbird PRS-51

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

PRS-29A
TimefactorsPRS-29A
MSRP $544
Speedbird PRS-51
TimefactorsSpeedbird PRS-51
MSRP $436
What people say

Owners + reviewers, side by side

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

Timefactors PRS-29A

Owners widely praise the Timefactors PRS-29A for its excellent value, faithful reissue design, and compact 36mm case. The manual-wind ETA 2801-2 movement, 100m water resistance, and anti-magnetic properties are frequently highlighted as functional strengths, making it a popular grab-and-go or travel watch. Some owners note the shiny hands can blend into the dial, and one owner reports accuracy around +5 seconds per day. A desire for a screw-down crown for enhanced water resistance and poor lume are also mentioned. Overall, owners rate the Timefactors PRS-29A highly for its historical accuracy and robust build at its price point.

Timefactors Speedbird PRS-51

Owners widely praise the Timefactors Speedbird PRS-51 for its flieger design, AR sapphire crystal, and value at £200. The 36mm case is noted to wear closer to 37mm due to the dial size, and while one owner describes the 5-link bracelet as well-built but stiff, another praises its drape and articulation. Accuracy figures vary among owners, with one reporting +7 seconds per day and another around +10 seconds per day, though one owner states theirs keeps impeccable time. The Miyota 9015 movement is noted by one owner to exhibit noticeable rotor wobble. Overall, owners rate the Timefactors Speedbird PRS-51 highly for its pilot watch aesthetics and value.

At a glance

6 of 29 specs differ
Diameter
PRS-29A36mm
Speedbird PRS-5136mm
Power Reserve
PRS-29A
Speedbird PRS-51
Water Resistance
PRS-29A100m
Speedbird PRS-51100m
MSRP
PRS-29A$544
Speedbird PRS-51$436

Full specifications

Case

2 specs
Thickness
11.1mm
11.4mm
Lug-to-Lug
46.8mm
42mm

Crystal & Dial

1 specs
Lume
SuperLuminova C3
SuperLuminova X1-C3

Movement

2 specs
Caliber
ETA 2801-2
Miyota 9015
Type
Manual
Automatic

Pricing

1 specs
MSRP
$544
$436
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