Side by side

Aera Instruments M-1vsGrand Seiko SLGA009

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

M-1
Aera InstrumentsM-1
SLGA009
Grand SeikoSLGA009
MSRP $9,800

At a glance

12 of 29 specs differ
Diameter
M-139mm
SLGA00940mm
Power Reserve
M-142h
SLGA009120h
Water Resistance
M-1100m
SLGA009100m
MSRP
M-1—
SLGA009$9,800

Full specifications

Case

5 specs
Category
—
Dress
Diameter
39mm
40mm
Thickness
13.14mm
11.8mm
Lug-to-Lug
47.6mm
47.9mm
Lug Width
20mm
22mm

Crystal & Dial

3 specs
AR Coating
Inner
Yes
Dial Color
Dune
Black
Lume
Super-LumiNova
None

Movement

3 specs
Caliber
Sellita SW216-1
9RA2
Type
Manual
Spring Drive
Power Reserve
42h
120h

Pricing

1 specs
MSRP
—
$9,800

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