I have a 16 sz. Elgin Convertible on my bench...It needs a staff...My Elgin book calls for a 861-C staff...Does anyone know the difference between a 861 and a 861-C staff...

G'Day!

The only difference between 861 and 861C is in the Oil Groove of the 861C staff.

Cheers

Dushan

Thanks everyone for your help...I think I know now what I needed to know and move forward...Thanks again...

the elgin 861c is for a 37 size 8 day clock movement and a few early 16 size movements

it is 533 long and the dia where the roller table fits is 63 and lenght from top of balance seat to bottom end of staff is 273

861 is 534 long and where the roller table fits is 60 and lenght form top of balance seat to the bottom of the staff is 276.



Some of very early elgins will use the 861c

Thanks Samie....I will make a note of that and put it with my Elgin staffs...Gary

Gary do you have the book
balance staff charts
writing by
Col. George e. Townsend
Oran S. Emrich
Roy Ehrhardt
Phillip Poniz
And
Warren H. Niebling

In the back of the book are page copies of balance staffs from Old Elgin ,,Illinois,,rockford and waltham catalogs also a lot of info on staffs from the older companys like e howard, american watch co, keystone, US WATCH ,,,LANCASTER ,,MARION,, etc.
THE COPY I HAVE WAS FROM MR EHRHARDT IN 1989.