Hello, I just picked up a Rode pocket watch 17 jewels with a broken balance staff. I have removed the old staff and measured it, but I couldn't get the length "A" dimension because the pivot is completely gone. My measurements are: A : 3.42 mm (expecting it to be longer) B : 2.16 mm J : 1.29 mm K : 0.79 mm G : 0.44 mm I am a bit stuck at the moments since I have no idea how to find a replacement. I would greatly appreciate if you can offer any he