Sheffield Alarm .........and many other brands
Läutdauer: 10 Sekunden // alarm takes 10 seconds
AS 1475, häufigstes schweizer Wecker-Werk, 17/21 Steine, (AS 1568 mit Datum)
AS 1475, the most built swiss alarm-movement, 17/21 jewels, (AS 1568 with date)