Side by side
Maystone Watch Co Prosperity GMTvsSerket Watch Co Reef Mariana
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
9 of 29 specs differDiameter
Prosperity GMT38mm
Reef Mariana40mm
Power Reserve
Prosperity GMT41h
Reef Mariana—
Water Resistance
Prosperity GMT100m
Reef Mariana200m
MSRP
Prosperity GMT$443
Reef Mariana$449
Full specifications
Case
4 specsDiameter
38mm
40mm
Thickness
11.9mm
13.2mm
Lug-to-Lug
46mm
47.5mm
Water Resistance
100m
200m
Crystal & Dial
2 specsDial Color
Red
Orange
Lume
string
BGW9
Movement
2 specsCaliber
Seiko NH34
Seiko NH35
Power Reserve
41h
—
Pricing
1 specsMSRP
—
$449
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