Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsLongines MASTER COLLECTION

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
LonginesMASTER COLLECTION
MSRP $2,850

At a glance

21 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
MASTER COLLECTION40mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
MASTER COLLECTION72h
Water Resistance
Flyboy Airmaster GMT Automatic50m
MASTER COLLECTION30m
MSRP
Flyboy Airmaster GMT Automatic$365
MASTER COLLECTION$2,850

Full specifications

Case

8 specs
Category
GMT
Thickness
10.8mm
Lug-to-Lug
46.8mm
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
Silver
Indices
Applied
Painted Arabic numerals
Lume
None
Super-LumiNova

Movement

7 specs
Caliber
NH34
L897.2
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, month and date by annual calendar

Pricing

1 specs
MSRP
$365
$2,850

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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

Owners widely praise the Longines Master Collection for its excellent fit and finish, attractive dial aesthetics with engraved numerals and textures, and overall value, particularly for complications like chronographs and moonphases at its price point. Reviewers note the refined design and product quality, with some finding the case appears less thick than its stated height. Owners report a buttery winding feel and appreciate the 72-hour power reserve. However, some owners find the case finishing homogenous and the traditional styling overshadowed by modern trends. Specific models draw criticism for subdial placement cutting off numerals, a lack of bracelet micro-adjustments, uninspiring crown and pushers, and 30m water resistance being on the light side. One owner reported a broken moon phase setting mechanism, while another felt the dial and chapter ring looked cheap.

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