Which is cheaper, the Gruppo Gamma Vanguard Steel Date or the Zelos Hammerhead (Tantalum LE)?

At MSRP the Gruppo Gamma Vanguard Steel Date is the cheaper of the two at $790, against $1,499 for the Zelos Hammerhead (Tantalum LE) — a $709 gap before any retailer discounting.

Which is bigger, the Gruppo Gamma Vanguard Steel Date or the Zelos Hammerhead (Tantalum LE)?

The Zelos Hammerhead (Tantalum LE) wears larger at 44mm versus 42mm for the Gruppo Gamma Vanguard Steel Date — a 2mm difference across the dial.

Which has better water resistance, the Gruppo Gamma Vanguard Steel Date or the Zelos Hammerhead (Tantalum LE)?

The Zelos Hammerhead (Tantalum LE) is rated to 300m versus 100m for the Gruppo Gamma Vanguard Steel Date.

Which has a longer power reserve, the Gruppo Gamma Vanguard Steel Date or the Zelos Hammerhead (Tantalum LE)?

The Gruppo Gamma Vanguard Steel Date carries a 42-hour power reserve against 40 hours on the Zelos Hammerhead (Tantalum LE).

What movement does the Gruppo Gamma Vanguard Steel Date run compared to the Zelos Hammerhead (Tantalum LE)?

Both watches run automatic movements — the Gruppo Gamma Vanguard Steel Date uses the Miyota 9015 and the Zelos Hammerhead (Tantalum LE) uses the Seiko NH35.

Side by side

Gruppo Gamma Vanguard Steel DatevsZelos Hammerhead (Tantalum LE)

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

Zelos Hammerhead (Tantalum LE)

hammerhead-v3-300m-tantalum-limited-edition

MSRP $1,499

At a glance

14 of 29 specs differ

Diameter

Vanguard Steel Date42mm

Hammerhead (Tantalum LE)44mm

Power Reserve

Vanguard Steel Date42h

Hammerhead (Tantalum LE)40h

Water Resistance

Vanguard Steel Date100m

Hammerhead (Tantalum LE)300m

MSRP

Vanguard Steel Date$790

Hammerhead (Tantalum LE)$1,499

Full specifications

Case

6 specs

Crystal & Dial

4 specs

Crystal

Sapphire

Domed Sapphire

AR Coating

Yes

Inner

Dial Color

Forged Carbon

Tantalum LE

Lume

Super-LumiNova

None

Movement

3 specs

Caliber

Miyota 9015

Seiko NH35

Power Reserve

42h

40h

Complications

Date

None

Pricing

1 specs

MSRP

$790

$1,499

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