Side by side

AVI-8 Bell X-1 Machbuster AutomaticvsBorealis Watch Co. Porto Covo

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

Bell X-1 Machbuster Automatic
AVI-8Bell X-1 Machbuster Automatic
MSRP $350
Porto Covo
Borealis Watch Co.Porto Covo
MSRP $415

At a glance

10 of 29 specs differ
Diameter
Bell X-1 Machbuster Automatic—
Porto Covo40mm
Power Reserve
Bell X-1 Machbuster Automatic40h
Porto Covo40h
Water Resistance
Bell X-1 Machbuster Automatic50m
Porto Covo300m
MSRP
Bell X-1 Machbuster Automatic$350
Porto Covo$415

Full specifications

Case

7 specs
Category
Pilot
Diver
Diameter
—
40mm
Thickness
13mm
11.6mm
Lug-to-Lug
51mm
42.5mm
Lug Width
—
20mm
Material
316L Stainless Steel
Stainless Steel
Water Resistance
50m
300m

Crystal & Dial

1 specs
Lume
None
BGW9

Movement

1 specs
Caliber
—
Miyota 9039

Pricing

1 specs
MSRP
$350
$415

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