Side by side
Maystone Watch Co Prosperity GMTvsSpinnaker Dumas Automatic
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
12 of 29 specs differDiameter
Prosperity GMT38mm
Dumas Automatic44mm
Power Reserve
Prosperity GMT41h
Dumas Automatic40h
Water Resistance
Prosperity GMT100m
Dumas Automatic300m
MSRP
Prosperity GMT$443
Dumas Automatic$239
Full specifications
Case
7 specsCategory
—
Diver
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 specsDial Color
Red
Blue
Lume
string
None
Movement
2 specsCaliber
Seiko NH34
SII NH35A
Power Reserve
41h
40h
Pricing
1 specsMSRP
—
$239
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