Which is cheaper, the Gruppo Gamma Vanguard Steel Date or the AVI-8 Flyboy Airmaster GMT Automatic?

At MSRP the AVI-8 Flyboy Airmaster GMT Automatic is the cheaper of the two at $365, against $790 for the Gruppo Gamma Vanguard Steel Date — a $425 gap before any retailer discounting.

Which is bigger, the Gruppo Gamma Vanguard Steel Date or the AVI-8 Flyboy Airmaster GMT Automatic?

The Gruppo Gamma Vanguard Steel Date wears larger at 42mm versus 40mm for the AVI-8 Flyboy Airmaster GMT Automatic — a 2mm difference across the dial.

Which has better water resistance, the Gruppo Gamma Vanguard Steel Date or the AVI-8 Flyboy Airmaster GMT Automatic?

The Gruppo Gamma Vanguard Steel Date is rated to 100m versus 50m for the AVI-8 Flyboy Airmaster GMT Automatic.

Which has a longer power reserve, the Gruppo Gamma Vanguard Steel Date or the AVI-8 Flyboy Airmaster GMT Automatic?

The Gruppo Gamma Vanguard Steel Date carries a 42-hour power reserve against 40 hours on the AVI-8 Flyboy Airmaster GMT Automatic.

What movement does the Gruppo Gamma Vanguard Steel Date run compared to the AVI-8 Flyboy Airmaster GMT Automatic?

Both watches run automatic movements — the Gruppo Gamma Vanguard Steel Date uses the Miyota 9015 and the AVI-8 Flyboy Airmaster GMT Automatic uses the NH34.

Side by side

Gruppo Gamma Vanguard Steel DatevsAVI-8 Flyboy Airmaster GMT Automatic

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

Gruppo Gamma Vanguard Steel Date

ag-11

MSRP $790

AVI-8 Flyboy Airmaster GMT Automatic

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

MSRP $365

At a glance

14 of 29 specs differ

Diameter

Vanguard Steel Date42mm

Flyboy Airmaster GMT Automatic40mm

Power Reserve

Vanguard Steel Date42h

Flyboy Airmaster GMT Automatic40h

Water Resistance

Vanguard Steel Date100m

Flyboy Airmaster GMT Automatic50m

MSRP

Vanguard Steel Date$790

Flyboy Airmaster GMT Automatic$365

Full specifications

Case

7 specs

Crystal & Dial

3 specs

AR Coating

Yes

Inner

Dial Color

Forged Carbon

Black

Lume

Super-LumiNova

None

Movement

3 specs

Caliber

Miyota 9015

NH34

Power Reserve

42h

40h

Complications

Date

None

Pricing

1 specs

MSRP

$790

$365

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