With only 36 hours power reserve, it is more likely to be an Adolf Schild Cal. AS 1382:

bidfun-db Archiv: Uhrwerke: AS 1382

The Felsa movements have 44 hours power reserve, the Cal. 699 "Permutator" showing this by disk:

bidfun-db Archiv: Uhrwerke: Felsa 699 Permutator

...the Cal. 760 having it at 9:00:

bidfun-db Archiv: Uhrwerke: Felsa 760 Permutator

...and the Cal. 1565 coming closest by having a small hand at 12:00 for the power reserve:

bidfun-db Archiv: Uhrwerke: Felsa 1565 Inversator

Hartmut Richter