Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsBremont S300

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
S300
BremontS300
MSRP $3,795

At a glance

6 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
S30040mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
S30040h
Water Resistance
Flyboy Airmaster GMT Automatic50m
S300300m
MSRP
Flyboy Airmaster GMT Automatic$365
S300$3,795

Full specifications

Case

3 specs
Category
GMT
Diver
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
300m

Crystal & Dial

1 specs
Dial Color
Black
Orange

Movement

1 specs
Caliber
NH34
BE-92AE

Pricing

1 specs
MSRP
$365
$3,795

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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.

Bremont S300

Owners widely praise the Bremont S300 for its comfortable 40mm size, fitting well under a cuff, and its appealing dial and bezel color. The winding action is described as smooth, and timekeeping averages +3 seconds per day, with machining noted as being on par with higher-end brands. One owner suggests tapering the bracelet and adding a mixed brushing and polishing finish for improved dress-shirt wearability. However, some find its styling lacks uniqueness compared to competitors, and the approximately 49mm lug-to-lug measurement is considered unusually long and potentially ill-fitting on smaller wrists. Overall, owners rate the Bremont S300 highly for its wearability and finishing at its price point.

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