Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsZelos Spearfish 3

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
Spearfish 3
ZelosSpearfish 3
MSRP $749

At a glance

8 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
Spearfish 340mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
Spearfish 340h
Water Resistance
Flyboy Airmaster GMT Automatic50m
Spearfish 3200m
MSRP
Flyboy Airmaster GMT Automatic$365
Spearfish 3$749

Full specifications

Case

5 specs
Category
GMT
Diver
Thickness
11.5mm
Lug-to-Lug
40mm
Lug Width
20mm
Water Resistance
50m
200m

Crystal & Dial

1 specs
Dial Color
Black
Diver - Forged Carbon

Movement

1 specs
Caliber
NH34
La Joux-Perret G100

Pricing

1 specs
MSRP
$365
$749

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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.

Zelos Spearfish 3

The Zelos Spearfish 3 is widely praised for its exceptional finishing, with razor-sharp polish and flawless brushed transitions that owners feel exceed its price point. The 40mm case is noted for its wearability, and the La Joux-Perret G100 movement offers a 68-hour power reserve, with reported accuracy averaging +2.6 seconds per day. Reviewers highlight the exceptionally smooth bi-directional bezel and a tool-less micro-adjustment clasp described as best-in-class among microbrands. The sapphire sandwich construction and lumed bezel are also cited as desirable features. Overall, owners and reviewers rate the Zelos Spearfish 3 highly for its outstanding finishing and value at its price point.

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