Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsNivada Grenchen Super Antarctic 38mm 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 38mm Automatic

Owners widely praise the Nivada Grenchen Super Antarctic 38mm Automatic's attractive 38mm case proportions and impressive build quality for its $750 price. One owner notes it performs extremely well and shows normal desk diving marks on the clasp. Accuracy figures range from +6 to +9 seconds per day. The Soprod P024 movement has a 38-hour power reserve, and one reviewer found the included rally strap mismatched. Overall, owners rate the Nivada Grenchen Super Antarctic 38mm Automatic highly for its case proportions and build quality at the price.

At a glance

18 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
Super Antarctic 38mm Automatic38mm
Power Reserve
Flyboy Airmaster GMT Automatic
Super Antarctic 38mm Automatic36h
Water Resistance
Flyboy Airmaster GMT Automatic50m
Super Antarctic 38mm Automatic100m
MSRP
Flyboy Airmaster GMT Automatic$365
Super Antarctic 38mm Automatic$945

Full specifications

Case

9 specs
Category
GMT
Chronograph
Diameter
40mm
38mm
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

2 specs
Dial Color
Black
Blue
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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