Seiko 1963 Sumo Association anniversary piece

Maker: Seiko
Model:  N/A
Material: plated
Dimensions: 33mm
Crystal: glass

Description & Condition report:

No dial corrosion
No glass scratches
Essentially a NOS piece with its full original box and papers

A commemorative piece of gem with its full documentation. a very dial which is in the design of the sumo-ring