Which is cheaper, the AVI-8 Flyboy Airmaster GMT Automatic or the Oblvlo GCM Mechanical?

At MSRP the Oblvlo GCM Mechanical is the cheaper of the two at $231, against $365 for the AVI-8 Flyboy Airmaster GMT Automatic — a $134 gap before any retailer discounting.

Which is bigger, the AVI-8 Flyboy Airmaster GMT Automatic or the Oblvlo GCM Mechanical?

The Oblvlo GCM Mechanical wears larger at 41mm versus 40mm for the AVI-8 Flyboy Airmaster GMT Automatic — a 1mm difference across the dial.

Which has a longer power reserve, the AVI-8 Flyboy Airmaster GMT Automatic or the Oblvlo GCM Mechanical?

The Oblvlo GCM Mechanical carries a 42-hour power reserve against 40 hours on the AVI-8 Flyboy Airmaster GMT Automatic.

What movement does the AVI-8 Flyboy Airmaster GMT Automatic run compared to the Oblvlo GCM Mechanical?

Both watches run automatic movements — the AVI-8 Flyboy Airmaster GMT Automatic uses the NH34 and the Oblvlo GCM Mechanical uses the Miyota 82S5.

Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsOblvlo GCM Mechanical

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

AVI-8 Flyboy Airmaster GMT Automatic

flyboy-airmaster-gmt-automatic-engine-black-av-4128-01

MSRP $365

Oblvlo GCM Mechanical

GCM-MUT

MSRP $231

At a glance

10 of 29 specs differ

Diameter

Flyboy Airmaster GMT Automatic40mm

GCM Mechanical41mm

Power Reserve

Flyboy Airmaster GMT Automatic40h

GCM Mechanical42h

Water Resistance

Flyboy Airmaster GMT Automatic50m

GCM Mechanical50m

MSRP

Flyboy Airmaster GMT Automatic$365

GCM Mechanical$231

Full specifications

Case

6 specs

Crystal & Dial

1 specs

Lume

None

Super-LumiNova

Movement

2 specs

Caliber

NH34

Miyota 82S5

Power Reserve

40h

42h

Pricing

1 specs

MSRP

$365

$231

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