Most visitors online was 1990 , on 7 Feb 2022
Sure!Is there any information on the backplate? Some German manufacturers will stamp the backplate with the BPM.
Also, your title does not distinguish between a HWN marked movement and a Hawina marked movement. Although they were made by the same company, they are different movements.
Can we see a picture of the backplate?
I don't understand. There is no 72 gear. The 30 teeth on the center arbor mesh with a 48 toothed wheel on T2's arbor, but a 75 toothed wheel drives the rest of the train. Maybe my poor penmanship has thrown you off?Only thing different will be the 30 to 72 gear down to the 2nd wheel pinion, all else is the normal gear up to the escapement. Willie X