According to an Online database its an 8th model. Cross referencing that with Swigarts American watch movements book the double roller staff would be 47607 also known as 1506/47633.
But since I am not an expert lets see if I got it correct before you order it.
Posts: 1143 | Location: Chicago, Illinois in the USA | Registered: September 05, 2010
Thanks to Jim and Brian for your input!!!I replaced a wobbly lower balance jewel but the balance is not seated with the cock in proper place so I am not sure if someone placed a staff too short or too much wear on staff
Mark
Posts: 97 | Location: Virginia in the USA | Registered: May 10, 2009
Its possible its the wrong staff as the correct one also fits the Bunn Special. Those staffs are sometimes hard to find. The 1684/47608 has the same dimensions except its shorter. 5.04mm instead of 5.32. If you have a micrometer it should be easy to check.
Posts: 1143 | Location: Chicago, Illinois in the USA | Registered: September 05, 2010
Mark I bought a box of staffs recently and 2 boxes of miscellaneous junk. The staff box is just great and as it happened the junk had 2 16s staffs for a Bunn Special in it and if you need one let me know.
Deacon
Posts: 1004 | Location: Omaha, Nebraska in the USA | Registered: February 14, 2009