I have a Hermle 141-070 45cm /101.9 movement from a Trend Clock. According the the Hermle Service manual, this unit should have two hammers. Well mine has only one with the accompanying gong. While winding the strike train, the clock/I experienced a a loud snap/sprang sound as the winding spring spun around the winding arbor. Assuming this had probably also happened to the owner, I examined the train and found the Second gear arbor bent on both sides of the gear and mangled teeth. Upon removeing the barrel, I found 4 missing teeth. WELL no wonder the darn thing wouldn't function. The Trend has a school house case in an intentional distressed finish. It cosst me $10.00 at an estate sale so i'm not out to much $. Now I need second gear and a #10 barrel. (1.) Also need a pendulum. I believe the 45cm would be the length from the suspension point to center of bob. Rather than purchase a new Hermle bob for this old clock, I would to use a generic bob. but I need to know the mass of said bob. Hermle service manual does not reference bob weights....Any Ideas (2.) also need the small rack return spring. (see photos) Thanks for your interest.