Side by side

Aera Instruments M-1vsGrand Seiko STGK003

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

M-1
Aera InstrumentsM-1
STGK003
Grand SeikoSTGK003
MSRP $31,200

At a glance

13 of 29 specs differ
Diameter
M-139mm
STGK00328.7mm
Power Reserve
M-142h
STGK00350h
Water Resistance
M-1100m
STGK003100m
MSRP
M-1—
STGK003$31,200

Full specifications

Case

6 specs
Category
—
Dress
Diameter
39mm
28.7mm
Thickness
13.14mm
10.9mm
Lug-to-Lug
47.6mm
35.1mm
Lug Width
20mm
14mm
Material
Stainless Steel
Gold

Crystal & Dial

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

Movement

3 specs
Caliber
Sellita SW216-1
9S27
Type
Manual
Automatic
Power Reserve
42h
50h

Pricing

1 specs
MSRP
—
$31,200

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