Caliber 9RA2 is an automatic Spring Drive movement manufactured by Seiko, introduced in 2020. It delivers ±10 seconds per month accuracy with a 120-hour power reserve from dual-size barrels. The 38-jewel movement features an offset magic lever and one-piece center bridge construction. It remains in production as the base for various Grand Seiko and Seiko Spring Drive models.
TECHNICAL SPECIFICATIONS
Movement Type
Spring Drive
Jewel Count
40 jewels
Power Reserve
120h
Display Type
Analog
COMPLICATIONS
FEATURES
QUICK FACTS
BRAND
TYPE
Spring DriveSTATUS
In ProductionMANUFACTURE
In-houseLAUNCH YEAR
2020CALIBER FAMILY
9RACOUNTRY
JapanALSO KNOWN AS
FOR WATCH DEALERS
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Watches with this movement
Grand Seiko
Evolution 9
SLGA009
Grand Seiko
Evolution 9
SLGA019
Grand Seiko
Evolution 9
SLGA021
Grand Seiko
Evolution 9
SLGA025
Grand Seiko
Heritage
SLGA027
Grand Seiko
Heritage
SLGA028
Grand Seiko
Heritage
SLGA030