Which is cheaper, the AVI-8 Flyboy Airmaster GMT Automatic or the Oblvlo FM SL Day-Date Square?

At MSRP the Oblvlo FM SL Day-Date Square is the cheaper of the two at $158, against $365 for the AVI-8 Flyboy Airmaster GMT Automatic — a $207 gap before any retailer discounting.

Which is bigger, the AVI-8 Flyboy Airmaster GMT Automatic or the Oblvlo FM SL Day-Date Square?

The AVI-8 Flyboy Airmaster GMT Automatic wears larger at 40mm versus 39mm for the Oblvlo FM SL Day-Date Square — a 1mm difference across the dial.

Which has a longer power reserve, the AVI-8 Flyboy Airmaster GMT Automatic or the Oblvlo FM SL Day-Date Square?

The Oblvlo FM SL Day-Date Square 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 FM SL Day-Date Square?

Both watches run automatic movements — the AVI-8 Flyboy Airmaster GMT Automatic uses the NH34 and the Oblvlo FM SL Day-Date Square uses the Miyota 8215.

Side by side

AVI-8 Flyboy Airmaster GMT AutomaticvsOblvlo FM SL Day-Date Square

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 FM SL Day-Date Square

FM-SL-DD-D

MSRP $158

At a glance

10 of 29 specs differ

Diameter

Flyboy Airmaster GMT Automatic40mm

FM SL Day-Date Square39mm

Power Reserve

Flyboy Airmaster GMT Automatic40h

FM SL Day-Date Square42h

Water Resistance

Flyboy Airmaster GMT Automatic50m

FM SL Day-Date Square50m

MSRP

Flyboy Airmaster GMT Automatic$365

FM SL Day-Date Square$158

Full specifications

Case

6 specs

Movement

3 specs

Caliber

NH34

Miyota 8215

Power Reserve

40h

42h

Jewels

Pricing

1 specs

MSRP

$365

$158

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