Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsFortis Stratoliner S-41

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
Stratoliner S-41
FortisStratoliner S-41
MSRP $5,450

At a glance

11 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
Stratoliner S-4141mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
Stratoliner S-4160h
Water Resistance
Flyboy Airmaster GMT Automatic50m
Stratoliner S-41200m
MSRP
Flyboy Airmaster GMT Automatic$365
Stratoliner S-41$5,450

Full specifications

Case

6 specs
Category
GMT
Chronograph
Diameter
40mm
41mm
Thickness
14mm
Lug Width
21mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
200m

Crystal & Dial

1 specs
Dial Color
Black
White

Movement

3 specs
Caliber
NH34
Manufacture Caliber WERK 17
Power Reserve
40h
60h
Jewels
25
36

Pricing

1 specs
MSRP
$365
$5,450

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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 Stratoliner S-41

Owners widely praise the Fortis Stratoliner S-41 for its purpose-built design and outstanding details, particularly its space blue lume and bright orange date on the dial. Reviewers note the WERK 17 movement offers a 60-hour power reserve. However, the Fortis Stratoliner S-41's 41mm case thickness and lug-to-lug distance lead some to perceive it as wearing large, and the dial's small text and flat design are flagged as potential drawbacks. Overall, owners and reviewers highlight the Fortis Stratoliner S-41's unique design and innovative movement as its primary strengths.

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