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AVI-8 Flyboy Airmaster GMT AutomaticvsSecond Hour Giant Stride

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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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.

Second Hour Giant Stride

The Silietta SW200 movement is a strength. The price point relative to other microbrand super compressor options is a weakness.

At a glance

12 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
Giant Stride42mm
Power Reserve
Flyboy Airmaster GMT Automatic
Giant Stride
Water Resistance
Flyboy Airmaster GMT Automatic50m
Giant Stride200m
MSRP
Flyboy Airmaster GMT Automatic$365
Giant Stride$505

Full specifications

Case

7 specs
Category
GMT
Diameter
40mm
42mm
Thickness
0mm
Lug-to-Lug
0mm
Lug Width
0mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
200m

Crystal & Dial

2 specs
Crystal
Sapphire
Dial Color
Black
Silver

Movement

2 specs
Caliber
Seiko NH34
Sellita SW200-1
Power Reserve
0h

Pricing

1 specs
MSRP
$365
$505
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