Side by side
Aera Instruments M-1vsHelgray Speedster (Racing Light Blue)
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
10 of 29 specs differDiameter
M-139mm
Speedster (Racing Light Blue)39mm
Power Reserve
M-142h
Speedster (Racing Light Blue)40h
Water Resistance
M-1100m
Speedster (Racing Light Blue)30m
MSRP
M-1—
Speedster (Racing Light Blue)$299
Full specifications
Case
4 specsCategory
—
Chronograph
Thickness
13.14mm
12mm
Lug-to-Lug
47.6mm
46mm
Water Resistance
100m
30m
Crystal & Dial
2 specsDial Color
Dune
Black
Lume
Super-LumiNova
None
Movement
3 specsCaliber
Sellita SW216-1
Miyota 6S21
Type
Manual
Automatic
Power Reserve
42h
40h
Pricing
1 specsMSRP
—
$299
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