The most standard Spring Drive movement in the 9R family. Combines mechanical construction with electronic regulation via a quartz crystal oscillator at 32,768 Hz. Achieves accuracy of ±15 seconds per month (approximately ±1 second per day). Uses Seiko's Magic Lever automatic winding mechanism. The glide motion seconds hand is the hallmark of Spring Drive technology.
Movement Type
Spring Drive
Jewel Count
30 jewels
Power Reserve
72h
Frequency
28,800 vph (8 Hz)
Diameter
30mm
Height
5.8mm
Display Type
Analog
Rotor Type
bidirectional
Winding
Magic Lever
Shock Protection
Diashock
BRAND
Grand SeikoTYPE
Spring DriveSTATUS
In ProductionMANUFACTURE
In-houseLAUNCH YEAR
2004CALIBER FAMILY
9RCOUNTRY
JapanALSO KNOWN AS
