Side by side
Aera Instruments M-1vsAlexander James Watches A4 Prelude 37 GMT
The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.
At a glance
9 of 29 specs differDiameter
M-139mm
A4 Prelude 37 GMT37.4mm
Power Reserve
M-142h
A4 Prelude 37 GMT—
Water Resistance
M-1100m
A4 Prelude 37 GMT200m
MSRP
M-1—
A4 Prelude 37 GMT—
Full specifications
Case
4 specsDiameter
39mm
37.4mm
Thickness
13.14mm
12.1mm
Lug-to-Lug
47.6mm
44.7mm
Water Resistance
100m
200m
Crystal & Dial
2 specsDial Color
Dune
White
Lume
Super-LumiNova
BGW9
Movement
3 specsCaliber
Sellita SW216-1
Seiko NH34
Type
Manual
Automatic
Power Reserve
42h
—
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