Side by side

Aera Instruments M-1vsHemel HD24 Automatic

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

M-1
Aera InstrumentsM-1
HD24 Automatic
HemelHD24 Automatic
MSRP $300

At a glance

13 of 29 specs differ
Diameter
M-139mm
HD24 Automatic40mm
Power Reserve
M-142h
HD24 Automatic40h
Water Resistance
M-1100m
HD24 Automatic200m
MSRP
M-1—
HD24 Automatic$300

Full specifications

Case

6 specs
Category
—
Diver
Diameter
39mm
40mm
Thickness
13.14mm
13mm
Lug-to-Lug
47.6mm
48mm
Material
Stainless Steel
316L Stainless Steel
Water Resistance
100m
200m

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Dune
Gallant USAF Edition
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Sellita SW216-1
Seiko NH38A
Type
Manual
Automatic
Power Reserve
42h
40h

Pricing

1 specs
MSRP
—
$300

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