Which is cheaper, the Gruppo Gamma Vanguard Steel Date or the Marathon Steel Navigator SSNAV-D Auto?

At MSRP the Gruppo Gamma Vanguard Steel Date is the cheaper of the two at $790, against $1,400 for the Marathon Steel Navigator SSNAV-D Auto — a $610 gap before any retailer discounting.

Which is bigger, the Gruppo Gamma Vanguard Steel Date or the Marathon Steel Navigator SSNAV-D Auto?

The Gruppo Gamma Vanguard Steel Date wears larger at 42mm versus 41mm for the Marathon Steel Navigator SSNAV-D Auto — a 1mm difference across the dial.

Which has better water resistance, the Gruppo Gamma Vanguard Steel Date or the Marathon Steel Navigator SSNAV-D Auto?

The Gruppo Gamma Vanguard Steel Date is rated to 100m versus 60m for the Marathon Steel Navigator SSNAV-D Auto.

Which has a longer power reserve, the Gruppo Gamma Vanguard Steel Date or the Marathon Steel Navigator SSNAV-D Auto?

The Gruppo Gamma Vanguard Steel Date carries a 42-hour power reserve against 40 hours on the Marathon Steel Navigator SSNAV-D Auto.

What movement does the Gruppo Gamma Vanguard Steel Date run compared to the Marathon Steel Navigator SSNAV-D Auto?

Both watches run automatic movements — the Gruppo Gamma Vanguard Steel Date uses the Miyota 9015 and the Marathon Steel Navigator SSNAV-D Auto uses the Sellita SW220-1.

Side by side

Gruppo Gamma Vanguard Steel DatevsMarathon Steel Navigator SSNAV-D 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

Marathon Steel Navigator SSNAV-D Auto

41mm-steel-navigator-automatic-w-date-ssnav-d-on-ballistic-nylon

MSRP $1,400

At a glance

14 of 29 specs differ

Diameter

Vanguard Steel Date42mm

Steel Navigator SSNAV-D Auto41mm

Power Reserve

Vanguard Steel Date42h

Steel Navigator SSNAV-D Auto40h

Water Resistance

Vanguard Steel Date100m

Steel Navigator SSNAV-D Auto60m

MSRP

Vanguard Steel Date$790

Steel Navigator SSNAV-D Auto$1,400

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

Sellita SW220-1

Power Reserve

42h

40h

Complications

Date

None

Pricing

1 specs

MSRP

$790

$1,400

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