Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsHamilton Khaki Aviation Pilot Day-Date - Air Zermatt Auto

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

At a glance

10 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
Khaki Aviation Pilot Day-Date - Air Zermatt Auto42mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
Khaki Aviation Pilot Day-Date - Air Zermatt Auto80h
Water Resistance
Flyboy Airmaster GMT Automatic50m
Khaki Aviation Pilot Day-Date - Air Zermatt Auto100m
MSRP
Flyboy Airmaster GMT Automatic$365
Khaki Aviation Pilot Day-Date - Air Zermatt Auto$1,075

Full specifications

Case

7 specs
Category
GMT
Pilot
Diameter
40mm
42mm
Thickness
12.15mm
Lug-to-Lug
46mm
Lug Width
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
100m

Movement

2 specs
Caliber
NH34
H-40
Power Reserve
40h
80h

Pricing

1 specs
MSRP
$365
$1,075

Follow this matchup

Get a note when AVI-8 Flyboy Airmaster GMT Automatic vs Hamilton Khaki Aviation Pilot Day-Date - Air Zermatt Auto gets more votes, a community discussion, or a price drop. No account needed.

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 Aviation Pilot Day-Date - Air Zermatt Auto

The Hamilton Khaki Aviation Pilot Day-Date - Air Zermatt Auto is widely praised for its value, with reviewers noting the Swatch Group's economies of scale contribute to its affordability. Owners and reviewers highlight the large, easy-to-read dial, with one source specifically mentioning the "ice-cold" blue degradé sub-dials as an unusual chromatic anomaly for its price point, and another noting the painted, luminous indices as a significant advantage. The 42mm case is described as offering a nice mix of brushed and polished finishes, and the slightly domed sapphire crystal enhances readability. The H-21 caliber provides a 60-hour power reserve and an anti-magnetic silicon balance spring, while the ETA 2834-2 movement offers precise day/date changes, though one source notes its 40-hour power reserve requires weekly winding. Some criticism is directed at the use of three different fonts and inconsistent color matching for the day/date indicators.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.