Side by side

Aera Instruments M-1vsHemel HFC Mechanical Chronograph

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

M-1
Aera InstrumentsM-1
HFC Mechanical Chronograph
HemelHFC Mechanical Chronograph
MSRP $550

At a glance

11 of 29 specs differ
Diameter
M-139mm
HFC Mechanical Chronograph40mm
Power Reserve
M-142h
HFC Mechanical Chronograph40h
Water Resistance
M-1100m
HFC Mechanical Chronograph100m
MSRP
M-1—
HFC Mechanical Chronograph$550

Full specifications

Case

5 specs
Category
—
Chronograph
Diameter
39mm
40mm
Thickness
13.14mm
13.4mm
Lug-to-Lug
47.6mm
47mm
Material
Stainless Steel
316L Stainless Steel

Crystal & Dial

3 specs
Crystal
Sapphire
Domed Sapphire
Dial Color
Dune
Airfoil (1970s British Pilot)
Lume
Super-LumiNova
None

Movement

2 specs
Caliber
Sellita SW216-1
Seagull ST19
Power Reserve
42h
40h

Pricing

1 specs
MSRP
—
$550

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