Kienzle 46/0b

open face calibre pin-lever escapement coarse imitation of balance screws back side painted in golden color ratchet on dial side, hidden crown mechanism with rocker bar The transition from the Kienzle 46/0a to the 46/0c was floating. Fig.3 and 4 show a sample with plates and balance of the Kienzle 46/0a, but with 3 threads for the new casing (not yet the later 3 posts of the Kienzle 46/c). The holes for the old casing are still present, but the according threads were not cut. Moreover the mounting flange was turned off, making this sample with Dm=Do= 42.65mm a bit smaller than the Kienzle 46/0c. So actually this is a Kienzle 46/0a, modified to fit cases for the Kienzle 46/c, and it will likely remain a secret why it was stamped as 46/0b. Surely this is authentic, as the modifications were done before painting the 3/4 plate, and as the threads, necessary for the Kienzle 46/0a, are missing. Likely furthr transition variants exist (cf. Kienzle 46/6b).