Side by side

Timefactors Speedbird PRS-51vsTuseno Shellback

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.

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.

Tuseno Shellback

The build quality is cited as a significant strength. Availability is a weakness, with stock running low.

At a glance

9 of 29 specs differ
Diameter
Speedbird PRS-5136mm
Shellback40mm
Power Reserve
Speedbird PRS-51
Shellback
Water Resistance
Speedbird PRS-51100m
Shellback200m
MSRP
Speedbird PRS-51$436
Shellback$840

Full specifications

Case

5 specs
Diameter
36mm
40mm
Thickness
11.4mm
11.9mm
Lug-to-Lug
42mm
47mm
Lug Width
18mm
20mm
Water Resistance
100m
200m

Crystal & Dial

2 specs
Dial Color
Black
Yellow
Lume
SuperLuminova X1-C3
Super-LumiNova

Movement

1 specs
Caliber
Miyota 9015
Sellita SW200-1

Pricing

1 specs
MSRP
$436
$840
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