Side by side

Seiko 5 Sports SNXS seriesvsTimefactors Speedbird PRS-51

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

5 Sports SNXS series
Seiko5 Sports SNXS series
MSRP $415
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.

Seiko 5 Sports SNXS series

Owners widely praise the Seiko 5 Sports SNXS series for its attractive sunburst dials, vintage aesthetic, and excellent value, with many highlighting its comfortable wearability. Reviewers and owners consistently flag the stock bracelet as a significant weakness, often described as jangly, hair-pulling, and difficult to adjust, with a flimsy clasp. The Hardlex crystal is noted as being prone to scratching, and the caseback is described as thick, contributing to a bulky appearance. Accuracy with the movement is reported to be variable, ranging from +/- 1-2 seconds per day to +/- 20 seconds or more, and the movement itself lacks hacking and hand-winding. On balance, owners and reviewers rate the Seiko 5 Sports SNXS series highly for its stunning dials and value, despite significant criticisms of its bracelet and movement limitations.

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

11 of 29 specs differ
Diameter
5 Sports SNXS series37.4mm
Speedbird PRS-5136mm
Power Reserve
5 Sports SNXS series41h
Speedbird PRS-51
Water Resistance
5 Sports SNXS series100m
Speedbird PRS-51100m
MSRP
5 Sports SNXS series$415
Speedbird PRS-51$436

Full specifications

Case

4 specs
Category
Sport
Diameter
37.4mm
36mm
Thickness
12.5mm
11.4mm
Lug-to-Lug
44.7mm
42mm

Crystal & Dial

3 specs
Crystal
Hardlex
Sapphire
Crystal Shape
Curved
Flat
Lume
LumiBrite on hands and index(es)
SuperLuminova X1-C3

Movement

3 specs
Caliber
Seiko 4R36
Miyota 9015
Power Reserve
41h
Jewels
24
25

Pricing

1 specs
MSRP
$415
$436
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