Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsOak & Oscar The Humboldt ExP-02

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 ExP-02
Oak & OscarThe Humboldt ExP-02
MSRP $2,400

At a glance

14 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
The Humboldt ExP-0239.5mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
The Humboldt ExP-0256h
Water Resistance
Flyboy Airmaster GMT Automatic50m
The Humboldt ExP-02200m
MSRP
Flyboy Airmaster GMT Automatic$365
The Humboldt ExP-02$2,400

Full specifications

Case

7 specs
Category
GMT
Tool
Diameter
40mm
39.5mm
Thickness
12.4mm
Lug-to-Lug
46.8mm
Lug Width
20mm
Water Resistance
50m
200m
Caseback
Solid
Display

Crystal & Dial

3 specs
Crystal Shape
Flat
Double-domed
Dial Color
Black
Grey
Lume
None
Super-LumiNova BGW9

Movement

3 specs
Caliber
NH34
Sellita SW300
Power Reserve
40h
56h
Complications
None
GMT, Chronograph

Pricing

1 specs
MSRP
$365
$2,400

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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 ExP-02

Oak & Oscar The Humboldt ExP-02 is a 39.5mm stainless steel tool watch featuring a unique, layered aluminum "ghost dial" for legibility and 200m water resistance, powered by a Sellita SW300 movement. Its appeal is limited by a US$2,550 price and an extremely limited production of 20 pieces, with its experimental dial construction done in Chicago. Overall, reviewers highlight the endearing dial and in-house bezel production as key features of the Oak & Oscar Humboldt ExP-02.

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