Family: 8J371 jewels
A true no-date movement; similar caliber 8J56 differs by having a date at 3:00.
TECHNICAL SPECIFICATIONS
Movement Type
Quartz
Jewel Count
371 jewels
Display Type
Analog
QUICK FACTS
BRAND
TYPE
QuartzSTATUS
In ProductionMANUFACTURE
In-houseBASED ON
Seiko 8J56CALIBER FAMILY
8JCOUNTRY
JapanALSO KNOWN AS
cal. 8j55grand seiko 8j55