Family: 9R30 jewels120h power reserve28,800 vph (8 Hz)
The Seiko caliber 9RA5 is a Spring Drive movement featuring the Tri-synchro regulator that combines mechanical power with electronic precision.
TECHNICAL SPECIFICATIONS
Movement Type
Spring Drive
Jewel Count
30 jewels
Power Reserve
120h
Frequency
28,800 vph (8 Hz)
Diameter
28.6mm
Height
5.18mm
Display Type
Analog
Rotor Type
Bidirectional Magic Lever
Winding
Automatic with Magic Lever winding
Shock Protection
Diashock
FEATURES & COMPLICATIONS
Spring DriveTri-synchro regulatorDual-size barrel systemDate complicationPower reserve indicatorAccuracy ±10 seconds/monthGlide motion seconds hand
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QUICK FACTS
BRAND
SeikoTYPE
Spring DriveSTATUS
In ProductionMANUFACTURE
In-houseLAUNCH YEAR
2020CALIBER FAMILY
9RCOUNTRY
JapanALSO KNOWN AS
Cal. 9RA5Grand Seiko 9RA5Spring Drive 9RA5