Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsOak & Oscar The Humboldt GMT

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
The Humboldt GMT
Oak & OscarThe Humboldt GMT
MSRP $2,175

At a glance

15 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
The Humboldt GMT39.5mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
The Humboldt GMT56 hoursh
Water Resistance
Flyboy Airmaster GMT Automatic50m
The Humboldt GMT200m
MSRP
Flyboy Airmaster GMT Automatic$365
The Humboldt GMT$2,175

Full specifications

Case

7 specs
Diameter
40mm
39.5mm
Thickness
12.5mm
Lug-to-Lug
46.8mm
Lug Width
20mm
Finish
Brushed and polished
Brushed
Water Resistance
50m
200m
Caseback
Solid
Solid screw-down

Crystal & Dial

4 specs
Crystal Shape
Flat
Double-domed
AR Coating
Inner
Underside
Dial Color
Black
White
Lume
None
Super-LumiNova

Movement

3 specs
Caliber
NH34
Sellita SW330
Beat Rate
28,800 vph
4 vph
Power Reserve
40h
56 hoursh

Pricing

1 specs
MSRP
$365
$2,175

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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.

Oak & Oscar The Humboldt GMT

Oak & Oscar The Humboldt GMT owners widely praise its exceptional accuracy, often running at or near 0 seconds per day, and its comfortable wearability with subtle design details. The construction quality for the price point, sandwich lume, and anti-magnetic properties are also highlighted. Some owners find the bracelet sizing adjustment slightly awkward, and one noted the lume could be brighter. Overall, owners rate the Oak & Oscar The Humboldt GMT highly for its accuracy and comfortable wearability.

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