Which is cheaper, the Decima Gatekeeper or the Signum Siege?

At MSRP the Signum Siege is the cheaper of the two at $539, against $599 for the Decima Gatekeeper — a $60 gap before any retailer discounting.

Which is bigger, the Decima Gatekeeper or the Signum Siege?

The Signum Siege wears larger at 40mm versus 38mm for the Decima Gatekeeper — a 2mm difference across the dial.

Which has better water resistance, the Decima Gatekeeper or the Signum Siege?

The Signum Siege is rated to 100m versus 50m for the Decima Gatekeeper.

What movement does the Decima Gatekeeper run compared to the Signum Siege?

Both watches run automatic movements — the Decima Gatekeeper uses the Miyota 9039 and the Signum Siege uses the Miyota 9015.

Side by side

Decima GatekeepervsSignum Siege

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

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Decima Gatekeeper

gatekeeper-white

MSRP $599

Signum Siege

signum-siege

MSRP $539

At a glance

11 of 29 specs differ

Diameter

Gatekeeper38mm

Siege40mm

Power Reserve

Gatekeeper42h

Siege—

Water Resistance

Gatekeeper50m

Siege100m

MSRP

Gatekeeper$599

Siege$539

Full specifications

Case

5 specs

Diameter

38mm

40mm

Thickness

9.9mm

10.5mm

Lug-to-Lug

46mm

48mm

Lug Width

—

20mm

Water Resistance

50m

100m

Crystal & Dial

3 specs

AR Coating

Yes

Inner

Dial Color

White

—

Lume

None

BGW9 Blue SuperLuminova

Movement

2 specs

Caliber

Miyota 9039

Miyota 9015

Power Reserve

42h

—

Pricing

1 specs

MSRP

$599

$539

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Decima GatekeepervsSignum Siege

At a glance

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