Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsGrand Seiko SBGV239

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
SBGV239
Grand SeikoSBGV239
MSRP $3,100

At a glance

10 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
SBGV23940mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
SBGV23940h
Water Resistance
Flyboy Airmaster GMT Automatic50m
SBGV239100m
MSRP
Flyboy Airmaster GMT Automatic$365
SBGV239$3,100

Full specifications

Case

6 specs
Category
GMT
Dress
Thickness
10.4mm
Lug-to-Lug
46.2mm
Lug Width
19mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
100m

Crystal & Dial

1 specs
AR Coating
Inner
Yes

Movement

2 specs
Caliber
NH34
9F82
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$365
$3,100

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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.

Grand Seiko SBGV239

The Grand Seiko SBGV239 is widely praised for its superb timekeeping from the 9F Quartz movement and its excellent finishing, which exceeds expectations. Owners highlight the dial's ability to pop even in poor lighting and its deep blue color that can appear black. The watch's 40mm diameter is also frequently cited as a positive attribute for wearability. Overall, owners rate the Grand Seiko SBGV239 highly for its exceptional finishing and the precise timekeeping of its 9F Quartz movement.

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