Side by side

Aera Instruments M-1vsFortis Stratoliner S-41

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

M-1
Aera InstrumentsM-1
Stratoliner S-41
FortisStratoliner S-41
MSRP $5,450

At a glance

13 of 29 specs differ
Diameter
M-139mm
Stratoliner S-4141mm
Power Reserve
M-142h
Stratoliner S-4160h
Water Resistance
M-1100m
Stratoliner S-41200m
MSRP
M-1—
Stratoliner S-41$5,450

Full specifications

Case

6 specs
Category
—
Chronograph
Diameter
39mm
41mm
Thickness
13.14mm
14mm
Lug-to-Lug
47.6mm
—
Lug Width
20mm
21mm
Water Resistance
100m
200m

Crystal & Dial

2 specs
Dial Color
Dune
White
Lume
Super-LumiNova
None

Movement

4 specs
Caliber
Sellita SW216-1
Manufacture Caliber WERK 17
Type
Manual
Automatic
Power Reserve
42h
60h
Jewels
25
36

Pricing

1 specs
MSRP
—
$5,450

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