Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsCitizen Series 8 831

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
Series 8 831
CitizenSeries 8 831
MSRP $1,095

At a glance

11 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
Series 8 83140mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
Series 8 83142h
Water Resistance
Flyboy Airmaster GMT Automatic50m
Series 8 831100m
MSRP
Flyboy Airmaster GMT Automatic$365
Series 8 831$1,095

Full specifications

Case

6 specs
Category
GMT
Sport
Thickness
12mm
Lug-to-Lug
46mm
Lug Width
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
100m

Crystal & Dial

2 specs
AR Coating
Inner
Underside
Dial Color
Black
Green

Movement

2 specs
Caliber
NH34
9051
Power Reserve
40h
42h

Pricing

1 specs
MSRP
$365
$1,095

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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.

Citizen Series 8 831

Owners widely praise the Citizen Series 8 831 for its finishing, with one owner noting it exceeded expectations. Reviewers highlight the textured Ice Blue dial and the bracelet's play of light, contributing to a comfortable and luxurious feel on the wrist. The watch features a 40mm ion-plated stainless steel case, a sapphire crystal, and 100 meters of water resistance. It is powered by the in-house Miyota Caliber 9051 automatic movement, which has a 42-hour power reserve and an accuracy range of -10 to +20 seconds per day. On balance, owners and reviewers rate the Citizen Series 8 831 highly for its impressive finishing and dial design at its price point.

From video reviewers

The case finishing, with its contrasting brushed and polished surfaces, is a notable strength. The 40mm case size and comfortable fit are also consistently mentioned. Reviewers did not reach a consensus on any weaknesses.

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