Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsBremont ALT1-C

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
ALT1-C
BremontALT1-C
MSRP $6,150

At a glance

8 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
ALT1-C43mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
ALT1-C40h
Water Resistance
Flyboy Airmaster GMT Automatic50m
ALT1-C100m
MSRP
Flyboy Airmaster GMT Automatic$365
ALT1-C$6,150

Full specifications

Case

5 specs
Category
GMT
Chronograph
Diameter
40mm
43mm
Thickness
16mm
Lug Width
22mm
Water Resistance
50m
100m

Crystal & Dial

1 specs
Dial Color
Black
Regular length (15cm - 19cm wrist size)

Movement

1 specs
Caliber
NH34
BE-50AE

Pricing

1 specs
MSRP
$365
$6,150

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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.

Bremont ALT1-C

Owners widely praise the Bremont ALT1-C for its flawless brushed case finish, attractive cream dial with excellent contrast from anthracite sub-dials, and comfortable, balanced wearability. The watch features a well-finished strap and a movement that is a joy to wind, with precise chronograph operation. Reviewers note refined feuille hands and polished Arabic numerals with a golden tinge, balancing ruggedness with elegance. The Bremont ALT1-C averages +3 seconds per day, though one reviewer flags its 16mm height as less than ideal for under-cuff wear and describes the date window as narrow. The modified Valjoux 7750 movement's rotor spin is noticeable. Overall, owners rate the Bremont ALT1-C highly for its refined aesthetics and enjoyable user experience.

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