Which is cheaper, the Serica Ref. 8315 Travel Chronometer or the AVI-8 Bell X-1 Machbuster Automatic?

At MSRP the AVI-8 Bell X-1 Machbuster Automatic is the cheaper of the two at $350, against $2,479 for the Serica Ref. 8315 Travel Chronometer — a $2,129 gap before any retailer discounting.

Which has better water resistance, the Serica Ref. 8315 Travel Chronometer or the AVI-8 Bell X-1 Machbuster Automatic?

The Serica Ref. 8315 Travel Chronometer is rated to 200m versus 50m for the AVI-8 Bell X-1 Machbuster Automatic.

Which has a longer power reserve, the Serica Ref. 8315 Travel Chronometer or the AVI-8 Bell X-1 Machbuster Automatic?

The Serica Ref. 8315 Travel Chronometer carries a 42-hour power reserve against 40 hours on the AVI-8 Bell X-1 Machbuster Automatic.

Side by side

Serica Ref. 8315 Travel ChronometervsAVI-8 Bell X-1 Machbuster Automatic

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

Serica Ref. 8315 Travel Chronometer

8315-1-travel-chronometer

MSRP $2,479

AVI-8 Bell X-1 Machbuster Automatic

bell-x-1-machbuster-automatic-graphite-black-av-4115-01

MSRP $350

At a glance

14 of 29 specs differ

Diameter

Ref. 8315 Travel Chronometer39mm

Bell X-1 Machbuster Automatic—

Power Reserve

Ref. 8315 Travel Chronometer42h

Bell X-1 Machbuster Automatic40h

Water Resistance

Ref. 8315 Travel Chronometer200m

Bell X-1 Machbuster Automatic50m

MSRP

Ref. 8315 Travel Chronometer$2,479

Bell X-1 Machbuster Automatic$350

Full specifications

Case

7 specs

Crystal & Dial

3 specs

AR Coating

Yes

Inner

Dial Color

GMT - Enamel Black

Black

Lume

Super-LumiNova

None

Movement

3 specs

Caliber

SOPROD C125 COSC

—

Power Reserve

42h

40h

Complications

GMT, COSC

None

Pricing

1 specs

MSRP

$2,479

$350

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