Link to the Ranfft archive showing the 6106 movement.
http://www.ranfft.de/cgi-bin/bidfun-db.cgi?10&ranfft&2&2uswk&Seiko_6106A
Information? The Ranfft listing may give you some answers. If there is information that you need after perusing the link, get back to us and ask specific questions.
Calendar problems. Many Seiko movements use plastic parts in their calendar mechanisms. You may need the help of a repair technician to diagnose and solve those problems.
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