Side by side
Aera Instruments M-1vsMaystone Watch Co Prosperity GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
9 of 29 specs differDiameter
M-139mm
Prosperity GMT38mm
Power Reserve
M-142h
Prosperity GMT41h
Water Resistance
M-1100m
Prosperity GMT100m
MSRP
M-1—
Prosperity GMT$443
Full specifications
Case
3 specsDiameter
39mm
38mm
Thickness
13.14mm
11.9mm
Lug-to-Lug
47.6mm
46mm
Crystal & Dial
2 specsDial Color
Dune
Red
Lume
Super-LumiNova
string
Movement
3 specsCaliber
Sellita SW216-1
Seiko NH34
Type
Manual
Automatic
Power Reserve
42h
41h
Pricing
1 specsMSRP
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