Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsMarathon Steel Navigator SSNAV-D Quartz

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
Steel Navigator SSNAV-D Quartz
MarathonSteel Navigator SSNAV-D Quartz
MSRP $1,300

At a glance

9 of 29 specs differ
Diameter
Flyboy Airmaster GMT Automatic40mm
Steel Navigator SSNAV-D Quartz41mm
Power Reserve
Flyboy Airmaster GMT Automatic40h
Steel Navigator SSNAV-D Quartz40h
Water Resistance
Flyboy Airmaster GMT Automatic50m
Steel Navigator SSNAV-D Quartz60m
MSRP
Flyboy Airmaster GMT Automatic$365
Steel Navigator SSNAV-D Quartz$1,300

Full specifications

Case

6 specs
Category
GMT
Pilot
Diameter
40mm
41mm
Thickness
11mm
Lug-to-Lug
48mm
Lug Width
20mm
Water Resistance
50m
60m

Movement

2 specs
Caliber
NH34
Swiss High-Torque Quartz
Type
Automatic
Quartz

Pricing

1 specs
MSRP
$365
$1,300

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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.

Marathon Steel Navigator SSNAV-D Quartz

The Marathon Steel Navigator SSNAV-D Quartz is widely praised for its high-accuracy Swiss Made ETA F06.412 HeavyDrive-PreciDrive quartz movement, rated at +/- 10 seconds per year, and its tritium lume. Reviewers and owners highlight its functional tool-watch appeal, noting the sandblasted steel case with an asymmetric design, excellent bi-directional bezel action, and drilled lug holes. Some owners find it perfectly suited for sport/rugged use, though not necessarily as an everyday watch. One owner points out that the case's distinctive asymmetry deviates from current aesthetic trends. Overall, owners and reviewers rate the Marathon Steel Navigator SSNAV-D Quartz highly for its robust build and exceptional timekeeping accuracy at its price point.

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