There was 2 different styles of Model 1 Grade 438 1xt's Robert to my knowledge, which one you have I do not know but the staffs required for the 2 different styles are the following Illinois part numbers; #47611 & #47612, what the difference is between the two I do not know.
Posts: 2265 | Location: Gladstone in Australia | Registered: January 14, 2011
Illinois factory part #1880 should be for the winding-stem/arbor Robert. Would probably have the Stem and the #47612 staff in both .85mm & .9mm pivot sizes.
Posts: 2265 | Location: Gladstone in Australia | Registered: January 14, 2011
Have you checked the staff for the pivot size Robert, it will save getting the wrong size then having to change jewels? I will PM you with shipping options and then you can make a decision, Mel has said he has them in .10mm, so it my pay to get your watch repairer to check?
Posts: 2265 | Location: Gladstone in Australia | Registered: January 14, 2011