Family: Y
Y121 is an automatic movement by Seiko Instruments Inc., based on the 7S26 caliber. This non-branded variant is sold to third-party watchmakers, allowing external brands to incorporate a reliable Japanese automatic movement without the Seiko name. The movement inherits the proven 7S architecture and remains in production for entry-level applications.
TECHNICAL SPECIFICATIONS
Movement Type
Automatic
Display Type
Analog
More Seiko Instruments Inc. movements
QUICK FACTS
TYPE
AutomaticSTATUS
In ProductionMANUFACTURE
In-houseBASED ON
Seiko Instruments Inc. 7S26CALIBER FAMILY
YFOR WATCH DEALERS
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