Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsMark Time Watches M 6

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
M 6
Mark Time WatchesM 6
MSRP $495
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.

Mark Time Watches M 6

The Mark Time Watches M 6 features a 39mm case with a deep black dial that gives the hands a floating appearance, and the second hand extends to the edge of the dial. Owners appreciate the absence of a ghost date position, a minimalist logo, and actual bezel screws. However, some find telling time to the nearest minute or two is challenging. Overall, owners value the M 6 for its thoughtful design elements like the full-length second hand and functional bezel screws.

At a glance

11 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
M 639mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
M 6
Water Resistance
Flyboy Airmaster GMT Automatic50m
M 6100m
MSRP
Flyboy Airmaster GMT Automatic$365
M 6$495

Full specifications

Case

7 specs
Category
GMT
Diameter
40mm
39mm
Thickness
10.6mm
Lug-to-Lug
45mm
Lug Width
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
100m

Crystal & Dial

1 specs
Dial Color
Black

Movement

2 specs
Caliber
Seiko NH34
Miyota 9039
Power Reserve
40h

Pricing

1 specs
MSRP
$365
$495
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