Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsMaen Manhattan 三七

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
Manhattan 三七
MaenManhattan 三七
MSRP $951

At a glance

7 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
Manhattan 三七37mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
Manhattan 三七40h
Water Resistance
Flyboy Airmaster GMT Automatic50m
Manhattan 三七100m
MSRP
Flyboy Airmaster GMT Automatic$365
Manhattan 三七$951

Full specifications

Case

4 specs
Category
GMT
Dress
Diameter
40mm
37mm
Thickness
9.3mm
Water Resistance
50m
100m

Crystal & Dial

1 specs
Dial Color
Black
MHV.01

Movement

1 specs
Caliber
NH34
Sellita SW200-1

Pricing

1 specs
MSRP
$365
$951

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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.

Maen Manhattan 三七

Owners are 100% satisfied with the Maen Manhattan 三七's looks and finishing quality, finding it super comfortable. Reviewers praise its modest dimensions, appealing case profile, and dial finishing with a vertical Côtes de Genève pattern, though one owner notes the dial color is deceptively different from website images. The Maen Manhattan 三七 features a thin 7.1mm case and 100m water resistance with a screw-down crown, utilizing a manual-wind movement with a two-day power reserve, while another reviewer points to a different movement with an average accuracy deviation of +/- 12 seconds per day and a 40-hour power reserve. On balance, owners and reviewers rate the Maen Manhattan 三七 highly for its finishing and comfortable wearability at its price point.

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