Side by side

Boldr Globetrotter GMTvsTimefactors Speedbird PRS-51

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.

Boldr Globetrotter GMT

The Boldr Globetrotter GMT is praised for its legibility and finishing, featuring applied Super-LumiNova indices and sword hands on a matte black or sunburst blue dial. Reviewers highlight the ceramic bezel's sharp city markings and tight, smooth ratcheting action. The 44mm 316L stainless steel case exhibits a non-traditional design with radial and vertical brushing.

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

12 of 29 specs differ
Diameter
Globetrotter GMT40mm
Speedbird PRS-5136mm
Power Reserve
Globetrotter GMT
Speedbird PRS-51
Water Resistance
Globetrotter GMT200m
Speedbird PRS-51100m
MSRP
Globetrotter GMT$469
Speedbird PRS-51$436

Full specifications

Case

6 specs
Category
GMT
Diameter
40mm
36mm
Thickness
12.7mm
11.4mm
Lug-to-Lug
48mm
42mm
Lug Width
20mm
18mm
Water Resistance
200m
100m

Crystal & Dial

3 specs
AR Coating
Yes
Dial Color
GMT Banff
Black
Lume
Super-LumiNova
SuperLuminova X1-C3

Movement

2 specs
Caliber
Seiko NH34
Miyota 9015
Power Reserve
0h

Pricing

1 specs
MSRP
$469
$436
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