Original antique string 2 weight regulator clockwork from Gustav Becker. Fully marked on the back, with 2 stamps, one for the medal d’ or and the other the factory stamp. Serial number 214109 (on front and back platine is the serial number the same.) Comes with the clock seat to fasten it to the back of the case. Weights 1443 gram each, pendulum length 64,5 cm. In excellent running condition. See picture of the clock it was taken from, clock is not part of the sale.