Side by side

Aera Instruments M-1vsZelos Helica Moonphase

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

M-1
Aera InstrumentsM-1
Helica Moonphase
ZelosHelica Moonphase
MSRP $1,049

At a glance

10 of 29 specs differ
Diameter
M-139mm
Helica Moonphase39mm
Power Reserve
M-142h
Helica Moonphase40h
Water Resistance
M-1100m
Helica Moonphase100m
MSRP
M-1—
Helica Moonphase$1,049

Full specifications

Case

4 specs
Category
—
Moonphase
Thickness
13.14mm
10mm
Lug-to-Lug
47.6mm
39mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

2 specs
Dial Color
Dune
Meteorite
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Sellita SW216-1
Sellita SW288 Moonphase
Type
Manual
Automatic
Power Reserve
42h
40h

Pricing

1 specs
MSRP
—
$1,049

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