Family: 4R
Caliber 4R15 is an in-house automatic movement manufactured by Seiko and an early member of the 4R family. It was succeeded by the 4R35 in 2012 and has since been discontinued. The movement features date functionality and represents Seiko's entry-level automatic offering prior to the updated 4R series specifications. It was primarily used in Seiko 5 Sports and entry-level Presage models.
TECHNICAL SPECIFICATIONS
Movement Type
Automatic
Display Type
Analog
QUICK FACTS
BRAND
TYPE
AutomaticSTATUS
DiscontinuedMANUFACTURE
In-houseCALIBER FAMILY
4RALSO KNOWN AS
cal. 4r15seiko 4r15