Masterpiece-level Spring Drive with 8-day (192 hours) power reserve. Features a unique thick one-piece bridge design approximately three times thicker than other Spring Drive calibers, providing exceptional durability and precision gear shaft positioning. Created at the Micro Artist Studio as part of Grand Seiko's haute horlogerie collection.
Movement Type
Spring Drive
Jewel Count
50 jewels
Power Reserve
192h
Frequency
28,800 vph (8 Hz)
Diameter
31mm
Height
6.9mm
Display Type
Analog
Shock Protection
Diashock
BRAND
Grand SeikoTYPE
Spring DriveSTATUS
In ProductionMANUFACTURE
In-houseLAUNCH YEAR
2016CALIBER FAMILY
9RCOUNTRY
JapanALSO KNOWN AS
