Side by side

Boldr Five-in-a-RowvsTimefactors Speedbird PRS-51

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

Five-in-a-Row
BoldrFive-in-a-Row
MSRP $399
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.

Boldr Five-in-a-Row

Owners widely praise Boldr's lightweight titanium cases, value, and suitability for outdoor or adventure use. The 38mm size is considered perfect by some, and the topographical dial on one variant offers fantastic depth with well-matched Old-Radium C3 lume. However, some owners report issues with customer service and perceived poor quality for the price, while others find the 14mm thickness chunky and the dial cluttered, impacting legibility. Accuracy averages around +15 seconds per day, though specific complications like a pulsometer and respiration timer are noted as accurate and useful on one variant. Overall, owners rate Boldr highly for its lightweight, functional design and value, despite some concerns about build quality and legibility.

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

13 of 29 specs differ
Diameter
Five-in-a-Row38mm
Speedbird PRS-5136mm
Power Reserve
Five-in-a-Row40h
Speedbird PRS-51
Water Resistance
Five-in-a-Row200m
Speedbird PRS-51100m
MSRP
Five-in-a-Row$399
Speedbird PRS-51$436

Full specifications

Case

7 specs
Category
Tool
Diameter
38mm
36mm
Thickness
12.8mm
11.4mm
Lug-to-Lug
44mm
42mm
Lug Width
20mm
18mm
Material
Titanium
Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

3 specs
AR Coating
Yes
Inner
Dial Color
Five In A Row I
Black
Lume
Super-LumiNova
SuperLuminova X1-C3

Movement

2 specs
Caliber
Seiko NH35
Miyota 9015
Power Reserve
40h

Pricing

1 specs
MSRP
$399
$436
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