Greetings ....
I have a newbie question on a Waltham 18s balance staff 1365.Is this a RIVET staff since I see no blue hub on the balance arm?have done some friction staffing but not tried this yet,I have the Bulova watchmaking manual to assist...my question is if it is riveted do I use a speading punch after it is seated or only the flat riviting punches?
Mark

Mark, The Waltham 1365 Balance staff you ask about is a Rivet style staff. While the Bulova school book is excellent for study, practice and classroom work, as a "D.I.Y." type you might find it simpler to follow the more explicit instructions written by H.B Fried in his "Watch Repairer's Manual". This is still in print if you wish to get a copy.

I address your question with Mr. Fried's guidance from Pages 117-120 of his 1949 edition of said book . . .

then . . .

and then . . .

and finally . . .

The only thing that could possibly be added is that you must make sure everything is scrupulously clean and there are no metal burrs on either the balance staff or the arms of the balance wheel at the center hole.

Regards, John

David...thank you for your work putting together that excellent tutorial for me and the rest of the newbies ! Guess I need to get a copy of Frieds manual,and also thanks to John for his input

Regards,Mark