Spring Drive GMT movement with dual time function using a 24-hour hand. Features quick correction for time zone adjustment without stopping the movement. Accuracy of ±15 seconds per month. Combines the smooth glide motion seconds hand with practical GMT functionality.
Movement Type
Spring Drive
Jewel Count
30 jewels
Power Reserve
72h
Frequency
28,800 vph (8 Hz)
Diameter
30mm
Height
5.9mm
Display Type
Analog
Rotor Type
bidirectional
Winding
Magic Lever
Shock Protection
Diashock
BRAND
Grand SeikoTYPE
Spring DriveSTATUS
In ProductionMANUFACTURE
In-houseLAUNCH YEAR
2006CALIBER FAMILY
9RCOUNTRY
JapanALSO KNOWN AS
