Side by side

Aera Instruments M-1vsVentus Watches Northstar

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

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M-1
Aera InstrumentsM-1
Northstar
Ventus WatchesNorthstar
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At a glance

9 of 29 specs differ
Diameter
M-139mm
Northstar40mm
Power Reserve
M-142h
Northstar—
Water Resistance
M-1100m
Northstar300m
MSRP
M-1—
Northstar—

Full specifications

Case

4 specs
Diameter
39mm
40mm
Thickness
13.14mm
13mm
Lug-to-Lug
47.6mm
45mm
Water Resistance
100m
300m

Crystal & Dial

2 specs
Dial Color
Dune
—
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Sellita SW216-1
Seiko NH35
Type
Manual
Automatic
Power Reserve
42h
—
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