Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsNivada Grenchen Super Antarctic 35mm Automatic

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

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.

Nivada Grenchen Super Antarctic 35mm Automatic

The Nivada Grenchen Super Antarctic 35mm Automatic is praised as a fantastic time-only release with excellent legibility due to its large indices and hands, and a comfortable 38mm case. Reviewers highlight its vintage-accurate 10.1mm thinness and 200m water resistance. An owner reports accuracy gains of +6 to +9 seconds per day, and one reviewer notes the "cream" lume color appears too yellow for faux patina. Overall, owners and reviewers rate the Nivada Grenchen Super Antarctic 35mm Automatic highly for its comfortable size and excellent legibility at its price point.

At a glance

17 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
Super Antarctic 35mm Automatic35mm
Power Reserve
Flyboy Airmaster GMT Automatic
Super Antarctic 35mm Automatic36h
Water Resistance
Flyboy Airmaster GMT Automatic50m
Super Antarctic 35mm Automatic100m
MSRP
Flyboy Airmaster GMT Automatic$365
Super Antarctic 35mm Automatic$945

Full specifications

Case

9 specs
Category
GMT
Sport
Diameter
40mm
35mm
Thickness
10.1mm
Lug-to-Lug
41.9mm
Lug Width
18mm
Material
316L Stainless Steel
Stainless Steel
Finish
Brushed + Polished
Water Resistance
50m
100m
Caseback
Engraved

Crystal & Dial

1 specs
Lume
None
Super-LumiNova

Movement

6 specs
Caliber
Seiko NH34
Sellita SW200-1
Beat Rate
0 vph
4 vph
Power Reserve
0h
36h
Jewels
0
18
Hand-winding
No
Yes
Complications
None
GMT

Pricing

1 specs
MSRP
$365
$945
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