Which is cheaper, the AVI-8 Bell X-1 Machbuster Chronograph or the Spinnaker Dumas GMT?

At MSRP the AVI-8 Bell X-1 Machbuster Chronograph is the cheaper of the two at $300, against $399 for the Spinnaker Dumas GMT — a $99 gap before any retailer discounting.

Which has better water resistance, the AVI-8 Bell X-1 Machbuster Chronograph or the Spinnaker Dumas GMT?

The Spinnaker Dumas GMT is rated to 300m versus 50m for the AVI-8 Bell X-1 Machbuster Chronograph.

What movement does the AVI-8 Bell X-1 Machbuster Chronograph run compared to the Spinnaker Dumas GMT?

The AVI-8 Bell X-1 Machbuster Chronograph runs a quartz caliber, while the Spinnaker Dumas GMT runs a automatic (Seiko NH34A).

Side by side

AVI-8 Bell X-1 Machbuster ChronographvsSpinnaker Dumas GMT

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

AVI-8 Bell X-1 Machbuster Chronograph

bell-x-1-machbuster-chronograph-aviation-blue-av-4118-01

MSRP $300

Spinnaker Dumas GMT

dumas-gmt-automatic-ocean-blue-sp-5119-55

MSRP $399

At a glance

10 of 29 specs differ

Diameter

Bell X-1 Machbuster Chronograph—

Dumas GMT44mm

Power Reserve

Bell X-1 Machbuster Chronograph40h

Dumas GMT40h

Water Resistance

Bell X-1 Machbuster Chronograph50m

Dumas GMT300m

MSRP

Bell X-1 Machbuster Chronograph$300

Dumas GMT$399

Full specifications

Case

6 specs

Crystal & Dial

1 specs

Crystal

Mineral

Sapphire

Movement

2 specs

Caliber

—

Seiko NH34A

Type

Quartz

Automatic

Pricing

1 specs

MSRP

$300

$399

Follow this matchup

Get a note when AVI-8 Bell X-1 Machbuster Chronograph vs Spinnaker Dumas GMT gets more votes, a community discussion, or a price drop. No account needed.

Keep exploring