Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsFortis Flieger F-39 Werk 7

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

Flyboy Airmaster GMT Automatic
AVI-8Flyboy Airmaster GMT Automatic
MSRP $365
Flieger F-39 Werk 7
FortisFlieger F-39 Werk 7
MSRP $4,510

At a glance

11 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
Flieger F-39 Werk 739mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
Flieger F-39 Werk 738h
Water Resistance
Flyboy Airmaster GMT Automatic50m
Flieger F-39 Werk 7200m
MSRP
Flyboy Airmaster GMT Automatic$365
Flieger F-39 Werk 7$4,510

Full specifications

Case

7 specs
Category
GMT
Pilot
Diameter
40mm
39mm
Thickness
11.5mm
Lug-to-Lug
46mm
Lug Width
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
200m

Movement

3 specs
Caliber
NH34
Werk 7 (Manufacture)
Power Reserve
40h
38h
Jewels
25
26

Pricing

1 specs
MSRP
$365
$4,510

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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.

AVI-8 Flyboy Airmaster GMT Automatic

Owners widely praise the AVI-8 Flyboy Airmaster GMT Automatic for its robust build quality, intricate three-timezone function, and crisp dial texture. The watch is noted for its wearable 41mm case size and 48.5mm lug-to-lug, with an internally positioned GMT complication that maintains a clean dial appearance. Some owners report the stock leather strap feels cheap and limits strap changing options. On balance, owners rate the AVI-8 Flyboy Airmaster GMT Automatic highly for its solid finishing and value, particularly highlighting the dial's depth and texture.

Fortis Flieger F-39 Werk 7

The Fortis Flieger is widely praised for its superb readability, robust build quality, and phenomenal fit and finish, with reviewers noting the practical Type-A dial and utilitarian design. The F-39 models are noted to wear large due to their lug-to-lug distance, and the UW-30 movement offers a 38-hour power reserve, while other variants feature a 70-hour power reserve. On balance, reviewers highlight the Fortis Flieger's modern, stylish take on pilot's watches, balancing legibility with unique aesthetics.

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