Which is bigger, the Helgray Speedster (Racing Light Blue) or the Spinnaker Bradner GMT?

The Spinnaker Bradner GMT wears larger at 42mm versus 39mm for the Helgray Speedster (Racing Light Blue) — a 3mm difference across the dial.

Which has better water resistance, the Helgray Speedster (Racing Light Blue) or the Spinnaker Bradner GMT?

The Spinnaker Bradner GMT is rated to 180m versus 30m for the Helgray Speedster (Racing Light Blue).

What movement does the Helgray Speedster (Racing Light Blue) run compared to the Spinnaker Bradner GMT?

Both watches run automatic movements — the Helgray Speedster (Racing Light Blue) uses the Miyota 6S21 and the Spinnaker Bradner GMT uses the Seiko NH34A.

Side by side

Helgray Speedster (Racing Light Blue)vsSpinnaker Bradner GMT

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

Helgray Speedster (Racing Light Blue)

speedster-racing-light-blue

MSRP $299

Spinnaker Bradner GMT

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

MSRP $299

At a glance

9 of 29 specs differ

Diameter

Speedster (Racing Light Blue)39mm

Bradner GMT42mm

Power Reserve

Speedster (Racing Light Blue)40h

Bradner GMT40h

Water Resistance

Speedster (Racing Light Blue)30m

Bradner GMT180m

MSRP

Speedster (Racing Light Blue)$299

Bradner GMT$299

Full specifications

Case

7 specs

Crystal & Dial

1 specs

Dial Color

Black

Brown

Movement

1 specs

Caliber

Miyota 6S21

Seiko NH34A

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