June 22, 2016, 09:56
Bila WirriganwaltersBalance Staff Part# for Ball-Elgin 18s Commercial Standard Grade 331
Hi All,
Can someone advise on what the Balance Staff Part# for Ball-Elgin 18s Commercial Standard Grade 331 happens to be?
Best Regards,
Bila
June 22, 2016, 14:44
Melvin SiedmanThe model # and/or the S/n might help.
Mel
June 22, 2016, 14:59
Melvin SiedmanYour staff is a 2357
I do not have any in stock at the moment, sorry.
Mel
June 22, 2016, 17:37
Bila WirriganwaltersApologies Melvin, Single Roller serial#118xxxxx Class 120, Model 11.
June 22, 2016, 20:02
Melvin SiedmanYou staff is an 857.
The other number I listed was for the center staff.
I have these if you want any.
mel
mrmel.mrmel@gmail.com
June 22, 2016, 20:16
Paul DavisHello, if I am not mistaken the 18s Elgin ball single roller staff # 1902c is the factory number, with a pivot of 11, bila if this is the one you need I can send you one, and Melvin you mentioned #2357 but i dont find that staff or number in any of my books or staff sets, i even looked it up in swartchilds logs ,if I'm wrong let me know please and tell me what I missed, I am always willing to learn something new...thanks
June 22, 2016, 21:15
Melvin SiedmanHi When I plug in the s/n this is what I get
Elgin Watch Parts: Grade 331
Go to this site
https://pocketwatchdatabase.co...11853734/parts/StaffThe staff is an 857
Mel
June 22, 2016, 21:28
Paul DavisHello Melvin , I have used that site but didn't investigate it for parts, when I replace them it's easy cause I have the one right there but matching one up with some of the info we have now days is somewhat confusing and I appreciate the extra info, one last question I know sometimes the pocket watch database has info for certain watches that isn't correct completely, is the parts log there more up to date and correct? If so you have taught me another good place to match up parts to certain watches that is better than some of the other places for info..a secondary source is a good thing..
Thanks and regards
June 22, 2016, 21:50
Bila WirriganwaltersHi Melvin,
Someone has already used a #857 staff in correct for balance wheel height. I have since found that there is a minimum of 8 different variations in the #857 Elgin staff. Makes for a right royal pain in the butt

June 23, 2016, 08:40
Paul DavisHello bila,
Can you give us the approx. Length of the staff that was in the watch, the 857 also is listed as a short hub and long hub, which affects the length..is the original staff to short or to long....thanks
Short hub is 5.97
Long hub is 6.10
Other variations exist in this staff.
June 23, 2016, 09:35
Bila WirriganwaltersIt will be the short hub Paul, also needs the larger collet size. if you have some staffs I will take some depending on price?
Cheers
June 23, 2016, 09:54
Gary E. CochranBila,
Elgin 857 stAff is a standard 18 size Elgin staff..You should have them in one of the assortments you have. Bought on this group...Gary
June 23, 2016, 10:08
Bila WirriganwaltersNot actually standard Gary, different hub heights, waist lengths which affects roller table height and also two sizes in collets.
June 23, 2016, 11:05
Paul DavisHello bila, I do have a few I think that matches yours, these are the hard ones to find because mostly been used out of all staff sets over time, how many do you need bila? I'll just send them to you no cost...
June 23, 2016, 13:16
Gary E. CochranA list of Elgin staffs in a Waltham school assortment..