Side by side

Riley Watch Co Heritage AutomaticvsSpinnaker Dumas GMT

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

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Heritage Automatic
Riley Watch CoHeritage Automatic
MSRP $401
Dumas GMT
SpinnakerDumas GMT
MSRP $399
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At a glance

10 of 29 specs differ
Diameter
Heritage Automatic40mm
Dumas GMT44mm
Power Reserve
Heritage Automatic40h
Dumas GMT40h
Water Resistance
Heritage Automatic50m
Dumas GMT300m
MSRP
Heritage Automatic$401
Dumas GMT$399

Full specifications

Case

7 specs
Category
—
GMT
Diameter
40mm
44mm
Thickness
11mm
15mm
Lug-to-Lug
46mm
48mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
50m
300m

Crystal & Dial

1 specs
Dial Color
—
Blue

Movement

1 specs
Caliber
Miyota 8N24
Seiko NH34A

Pricing

1 specs
MSRP
—
$399
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