Side by side
Aera Instruments M-1vsCircula Watches AquaSport 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
AquaSport GMT40mm
Power Reserve
M-142h
AquaSport GMT56h
Water Resistance
M-1100m
AquaSport GMT200m
MSRP
M-1—
AquaSport GMT—
Full specifications
Case
4 specsDiameter
39mm
40mm
Thickness
13.14mm
12.6mm
Lug-to-Lug
47.6mm
46mm
Water Resistance
100m
200m
Crystal & Dial
2 specsDial Color
Dune
Blue
Lume
Super-LumiNova
None
Movement
3 specsCaliber
Sellita SW216-1
Sellita SW330-2
Type
Manual
Automatic
Power Reserve
42h
56h
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