Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsIslander Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316

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
Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316
IslanderIslander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316
MSRP $379

At a glance

15 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-31640mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316
Water Resistance
Flyboy Airmaster GMT Automatic50m
Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316200m
MSRP
Flyboy Airmaster GMT Automatic$365
Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316$379

Full specifications

Case

7 specs
Thickness
14mm
Lug-to-Lug
48mm
Lug Width
20mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed and polished
Water Resistance
50m
200m
Caseback
Solid
Screw-down

Crystal & Dial

3 specs
AR Coating
Inner
Underside
Dial Color
Black
Indices
Applied

Movement

4 specs
Caliber
NH34
Seiko NH34
Beat Rate
28,800 vph
0 vph
Power Reserve
40h
0h
Jewels
25
0

Pricing

1 specs
MSRP
$365
$379

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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.

Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316

Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316 offers excellent value at $329 MSRP, featuring a handsome anthracite dial with applied indices, a sapphire crystal, and a quality 120-click unidirectional bezel. Owners highlight the NH34 movement and well-proportioned 40x48x20mm case. Overall, owners rate the Islander Calabro GMT World Time Automatic Watch with Anthracite Dial #ISL-316 highly for its value and feature set at the price point.

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