Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsLongines MASTER COLLECTION MOONPHASE

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
MASTER COLLECTION MOONPHASE
LonginesMASTER COLLECTION MOONPHASE
MSRP $3,450

At a glance

21 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
MASTER COLLECTION MOONPHASE40mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
MASTER COLLECTION MOONPHASE72h
Water Resistance
Flyboy Airmaster GMT Automatic50m
MASTER COLLECTION MOONPHASE30m
MSRP
Flyboy Airmaster GMT Automatic$365
MASTER COLLECTION MOONPHASE$3,450

Full specifications

Case

8 specs
Category
GMT
Moonphase
Thickness
11.1mm
Lug-to-Lug
47mm
Lug Width
21mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Water Resistance
50m
30m
Caseback
Solid
Transparent case back with sapphire crystal

Crystal & Dial

5 specs
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
Blue
Indices
Applied
Diamond indexes
Lume
None
Super-LumiNova

Movement

7 specs
Caliber
NH34
L899.5
Beat Rate
28,800 vph
25,200 vph
Power Reserve
40h
72h
Jewels
25
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
None
Hours, minutes, seconds, moon phase display and date indicated by small hand at

Pricing

1 specs
MSRP
$365
$3,450

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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.

Longines MASTER COLLECTION MOONPHASE

Owners widely praise the Longines MASTER COLLECTION MOONPHASE for its legible dial, romantic moonphase complication, and overall value for money. Reviewers note its classic design, barleycorn guilloché dial, and Roman numerals. Some owners find the strap superb, while others mention the cut-off Roman numeral six as a potential drawback. The watch has a 3 bar water resistance, limiting its use to drier environments, and the complete calendar requires manual adjustment for shorter months. On balance, the consensus is that the Longines MASTER COLLECTION MOONPHASE is highly regarded for its attractive dial and complication at its price point.

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