Side by side

Aera Instruments M-1vsZelos Helica

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

M-1
Aera InstrumentsM-1
Helica
ZelosHelica
MSRP $499

At a glance

10 of 29 specs differ
Diameter
M-139mm
Helica39mm
Power Reserve
M-142h
Helica40h
Water Resistance
M-1100m
Helica100m
MSRP
M-1—
Helica$499

Full specifications

Case

4 specs
Category
—
Diver
Thickness
13.14mm
10.5mm
Lug-to-Lug
47.6mm
39mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

2 specs
Dial Color
Dune
39 - Wave MOP
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Sellita SW216-1
Miyota 9015
Type
Manual
Automatic
Power Reserve
42h
40h

Pricing

1 specs
MSRP
—
$499

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