Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsSpinnaker Croft 39 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
Croft 39 GMT
SpinnakerCroft 39 GMT
MSRP $445

At a glance

8 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
Croft 39 GMT39mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
Croft 39 GMT40h
Water Resistance
Flyboy Airmaster GMT Automatic50m
Croft 39 GMT100m
MSRP
Flyboy Airmaster GMT Automatic$365
Croft 39 GMT$445

Full specifications

Case

5 specs
Diameter
40mm
39mm
Thickness
13mm
Lug-to-Lug
47mm
Lug Width
20mm
Water Resistance
50m
100m

Crystal & Dial

1 specs
Dial Color
Black
Red

Movement

1 specs
Caliber
NH34
Seiko NH34A

Pricing

1 specs
MSRP
$365
$445

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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.

Spinnaker Croft 39 GMT

Owners praise the Spinnaker Croft 39 GMT for its colorful design, NH34 GMT movement, and reasonable price, noting high-standard manufacturing on the case, bezel, and bracelet. One owner finds the 43mm case and 51mm lug-to-lug dimensions too large for the design, preferring a 39-40mm case size. A potential issue with the lume was noted by one user. On balance, owners value the Spinnaker Croft 39 GMT for its attractive design and build quality at its price point, though sizing is a point of contention for some.

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