Side by side

Maystone Watch Co Prosperity GMTvsSpinnaker Dumas GMT

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

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Prosperity GMT
Maystone Watch CoProsperity GMT
MSRP $443
Dumas GMT
SpinnakerDumas GMT
MSRP $399
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Buy from Spinnaker ↗
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At a glance

12 of 29 specs differ
Diameter
Prosperity GMT38mm
Dumas GMT44mm
Power Reserve
Prosperity GMT41h
Dumas GMT40h
Water Resistance
Prosperity GMT100m
Dumas GMT300m
MSRP
Prosperity GMT$443
Dumas GMT$399

Full specifications

Case

7 specs
Category
—
GMT
Diameter
38mm
44mm
Thickness
11.9mm
15mm
Lug-to-Lug
46mm
48mm
Lug Width
20mm
22mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
300m

Crystal & Dial

2 specs
Dial Color
Red
Blue
Lume
string
None

Movement

2 specs
Caliber
Seiko NH34
Seiko NH34A
Power Reserve
41h
40h

Pricing

1 specs
MSRP
—
$399
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