Which is cheaper, the Signum Cero or the Spinnaker Bradner GMT?

At MSRP the Spinnaker Bradner GMT is the cheaper of the two at $299, against $519 for the Signum Cero — a $220 gap before any retailer discounting.

Which is bigger, the Signum Cero or the Spinnaker Bradner GMT?

The Spinnaker Bradner GMT wears larger at 42mm versus 39.5mm for the Signum Cero — a 2.5mm difference across the dial.

Which has better water resistance, the Signum Cero or the Spinnaker Bradner GMT?

The Signum Cero is rated to 200m versus 180m for the Spinnaker Bradner GMT.

What movement does the Signum Cero run compared to the Spinnaker Bradner GMT?

Both watches run automatic movements — the Signum Cero uses the Seiko NH35 and the Spinnaker Bradner GMT uses the Seiko NH34A.

Side by side

Signum CerovsSpinnaker Bradner GMT

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

Add a watch

Signum Cero

signum-cero-bronze-labradorite-blue-or-purple

MSRP $519

Spinnaker Bradner GMT

bradner-gmt-automatic-abbott-brown-sp-5121-22

MSRP $299

At a glance

11 of 29 specs differ

Diameter

Cero39.5mm

Bradner GMT42mm

Power Reserve

Cero—

Bradner GMT40h

Water Resistance

Cero200m

Bradner GMT180m

MSRP

Cero$519

Bradner GMT$299

Full specifications

Case

7 specs

Crystal & Dial

1 specs

Dial Color

—

Brown

Movement

2 specs

Caliber

Seiko NH35

Seiko NH34A

Power Reserve

—

40h

Pricing

1 specs

MSRP

$519

$299

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Signum CerovsSpinnaker Bradner GMT

At a glance

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