Which is cheaper, the Gruppo Gamma Vanguard Steel Date or the Hamilton Jazzmaster Day Date Auto?

At MSRP the Gruppo Gamma Vanguard Steel Date is the cheaper of the two at $790, against $1,045 for the Hamilton Jazzmaster Day Date Auto — a $255 gap before any retailer discounting.

Which is bigger, the Gruppo Gamma Vanguard Steel Date or the Hamilton Jazzmaster Day Date Auto?

The Gruppo Gamma Vanguard Steel Date wears larger at 42mm versus 40mm for the Hamilton Jazzmaster Day Date Auto — a 2mm difference across the dial.

Which has better water resistance, the Gruppo Gamma Vanguard Steel Date or the Hamilton Jazzmaster Day Date Auto?

The Gruppo Gamma Vanguard Steel Date is rated to 100m versus 50m for the Hamilton Jazzmaster Day Date Auto.

Which has a longer power reserve, the Gruppo Gamma Vanguard Steel Date or the Hamilton Jazzmaster Day Date Auto?

The Hamilton Jazzmaster Day Date Auto carries a 80-hour power reserve against 42 hours on the Gruppo Gamma Vanguard Steel Date.

What movement does the Gruppo Gamma Vanguard Steel Date run compared to the Hamilton Jazzmaster Day Date Auto?

Both watches run automatic movements — the Gruppo Gamma Vanguard Steel Date uses the Miyota 9015 and the Hamilton Jazzmaster Day Date Auto uses the H-40.

Side by side

Gruppo Gamma Vanguard Steel DatevsHamilton Jazzmaster Day Date Auto

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

Hamilton Jazzmaster Day Date Auto

h32505131

MSRP $1,045

At a glance

13 of 29 specs differ

Diameter

Vanguard Steel Date42mm

Jazzmaster Day Date Auto40mm

Power Reserve

Vanguard Steel Date42h

Jazzmaster Day Date Auto80h

Water Resistance

Vanguard Steel Date100m

Jazzmaster Day Date Auto50m

MSRP

Vanguard Steel Date$790

Jazzmaster Day Date Auto$1,045

Full specifications

Case

6 specs

Crystal & Dial

3 specs

AR Coating

Yes

Inner

Dial Color

Forged Carbon

Black

Lume

Super-LumiNova

None

Movement

3 specs

Caliber

Miyota 9015

H-40

Power Reserve

42h

80h

Complications

Date

None

Pricing

1 specs

MSRP

$790

$1,045

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