Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsHamilton Khaki Navy Scuba Auto

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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 Navy Scuba Auto

Owners and reviewers widely praise the Hamilton Khaki Navy Scuba Auto for its exceptional value, robust construction, and distinctive dial designs, with many highlighting the 80-hour power reserve provided by the H-10 movement. The watch is frequently noted for its utilitarian dial, legible lume, and tactile bezel action. However, the 43mm case size is a recurring point of contention, with several sources deeming it large for everyday wear, though some owners find it comfortable and appreciate its substantial feel. One reviewer points out that the steel bracelet could benefit from a taper and a quick-adjust clasp, and another notes the unlumed bezel pip as a minor area for improvement. Overall, the Hamilton Khaki Navy Scuba Auto is highly regarded by owners and reviewers for its strong value and appealing tool-watch aesthetic, with the 43mm case size being the most significant consideration for potential buyers.

From video reviewers

The 80-hour power reserve from the H-10 movement is a significant strength. Reviewers noted the bezel action and bracelet/clasp as points of focus.

At a glance

9 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
Khaki Navy Scuba Auto40mm
Power Reserve
Flyboy Airmaster GMT Automatic
Khaki Navy Scuba Auto80h
Water Resistance
Flyboy Airmaster GMT Automatic50m
Khaki Navy Scuba Auto100m
MSRP
Flyboy Airmaster GMT Automatic$365
Khaki Navy Scuba Auto$975

Full specifications

Case

6 specs
Category
GMT
Diver
Thickness
12.95mm
Lug-to-Lug
0mm
Lug Width
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
100m

Movement

2 specs
Caliber
Seiko NH34
Hamilton H-10
Power Reserve
0h
80h

Pricing

1 specs
MSRP
$365
$975
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