Original Seiko Oshidori pin (オシドリピン) for the Seiko Crown Special . The Oshidori pin is a central component of the keyless work (winding and hand-setting mechanism) and serves as a guide and bearing pin for the clutch lever ( Oshidori ).
This is an unused original historical part ( New Old Stock, NOS ) from the corresponding SEIKO service line for the Crown Special.
Ideal for the professional restoration of vintage Seiko movements of this series.
Technical data
Manufacturer: Seiko (Hattori)
Model assignment:Seiko Crown Special
Part name: Oshidori pin (オシドリピン)
Function: Guide pin of the clutch lever in Keyless Works
