Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsSpinnaker Hull Riviera

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
Hull Riviera
SpinnakerHull Riviera
MSRP $169

At a glance

9 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
Hull Riviera42mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
Hull Riviera40h
Water Resistance
Flyboy Airmaster GMT Automatic50m
Hull Riviera100m
MSRP
Flyboy Airmaster GMT Automatic$365
Hull Riviera$169

Full specifications

Case

6 specs
Category
GMT
Sport
Diameter
40mm
42mm
Thickness
15mm
Lug-to-Lug
47.5mm
Lug Width
22mm
Water Resistance
50m
100m

Crystal & Dial

1 specs
Dial Color
Black
Blue

Movement

1 specs
Caliber
NH34
SII NH35A

Pricing

1 specs
MSRP
$365
$169

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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.

Spinnaker Hull Riviera

Owners praise the Spinnaker Hull Riviera's build quality, highlighting its milled clasp, solid links, and effective anti-reflective coating on the sapphire crystal. The watch features a sandwich dial with Superluminova, measures 42mm in diameter, 12mm thick with a 48mm lug-to-lug span, and uses a Seiko NH35 movement. Accuracy is reported as excellent, with one owner noting a gain of only +2 seconds over seven days. The crystal is noted as being fused to the case, leading to a repair quote of $198 for a cracked crystal, a cost considered excessive by some owners relative to the watch's price. Lume is considered mediocre, and some would have preferred a 4Hz movement. Overall, owners rate the Spinnaker Hull Riviera highly for its robust build and impressive accuracy at its price point.

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