Side by side
Maystone Watch Co Prosperity GMTvsGrand Seiko SBGA375
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
SBGA37540mm
Power Reserve
Prosperity GMT41h
SBGA37572h
Water Resistance
Prosperity GMT100m
SBGA375100m
MSRP
Prosperity GMT$443
SBGA375$5,600
Full specifications
Case
5 specsCategory
—
Dress
Diameter
38mm
40mm
Thickness
11.9mm
12.5mm
Lug-to-Lug
46mm
46.2mm
Lug Width
20mm
19mm
Crystal & Dial
3 specsAR Coating
Inner
Yes
Dial Color
Red
Black
Lume
string
None
Movement
3 specsCaliber
Seiko NH34
9R65
Type
Automatic
Spring Drive
Power Reserve
41h
72h
Pricing
1 specsMSRP
—
$5,600
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