Side by side

Aevig Thule GMTvsTimefactors Speedbird PRS-51

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

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What people say

Owners + reviewers, side by side

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

Aevig Thule GMT

Owners widely praise the Aevig Thule GMT for its 70s-inspired design, lightweight titanium case with a hardness coating, and the accurate NH34 movement running at 1-2 seconds fast per day. The watch also features fantastic AR coating, a quick-release bracelet, and excellent customer service. Some wish for sharper case angles and polished details to enhance its dressier appeal, and macro photos suggest potential irregularities on the hour markers. Overall, owners rate the Aevig Thule GMT highly for its vintage charm and practical features at an affordable price.

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
Thule GMT39mm
Speedbird PRS-5136mm
Power Reserve
Thule GMT70h
Speedbird PRS-51
Water Resistance
Thule GMT100m
Speedbird PRS-51100m
MSRP
Thule GMT$755
Speedbird PRS-51$436

Full specifications

Case

6 specs
Category
GMT
Diameter
39mm
36mm
Thickness
12.3mm
11.4mm
Lug-to-Lug
48.5mm
42mm
Lug Width
20mm
18mm
Material
Titanium
Stainless Steel

Crystal & Dial

2 specs
Dial Color
Black
Lume
Superluminova
SuperLuminova X1-C3

Movement

2 specs
Caliber
Seiko NH34
Miyota 9015
Power Reserve
70h

Pricing

1 specs
MSRP
$755
$436
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