Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsHamilton Khaki Field Mechanical Bronze

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
Khaki Field Mechanical Bronze
HamiltonKhaki Field Mechanical Bronze
MSRP $1,025

At a glance

11 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
Khaki Field Mechanical Bronze38mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
Khaki Field Mechanical Bronze80h
Water Resistance
Flyboy Airmaster GMT Automatic50m
Khaki Field Mechanical Bronze50m
MSRP
Flyboy Airmaster GMT Automatic$365
Khaki Field Mechanical Bronze$1,025

Full specifications

Case

6 specs
Category
GMT
Field
Diameter
40mm
38mm
Thickness
9.6mm
Lug-to-Lug
46mm
Lug Width
20mm
Material
316L Stainless Steel
Titanium

Crystal & Dial

1 specs
Dial Color
Black
White

Movement

3 specs
Caliber
NH34
H-50
Type
Automatic
Manual
Power Reserve
40h
80h

Pricing

1 specs
MSRP
$365
$1,025

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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.

Hamilton Khaki Field Mechanical Bronze

Owners and reviewers widely praise the Hamilton Khaki Field Mechanical Bronze for its attractive bronze case that develops a unique patina, its comfortable 38mm size, and the satisfying winding action of its hand-wound H-50 movement, which provides an 80-hour power reserve. The vintage military design, legible matte black dial with beige lume, and overall value are frequently highlighted as key strengths. Some owners note the lugs appear large, and while earlier models had 50m water resistance, newer versions offer 100m. Overall, owners and reviewers rate the Hamilton Khaki Field Mechanical Bronze highly for its vintage aesthetic and character-building patina at an accessible price.

From video reviewers

The watch's bronze case develops a unique patina over time, adding to its character. A potential weakness is the watch's bronze reacting with certain skin types or environments, causing discoloration or staining. Reviewers disagree on the lume brightness, with one reviewer finding it lacking and the other not mentioning it.

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