need help identifying mark

[vonslok]

i recently acquired this watch it is quite charming however i can not find any info about the makers mark. a fish in an oval with the letter a below it . then it is stamped 0,935. finally 26 is stamped small on bottom.
any help would be super !
thanks
vonslok

[vonslok]

weel i was at an antiques store and i got to talking about my watch...
the gent who worked there had a lot of knowledge on silver,(and books)
Im not totally sure but i believe the fish is an austrian import mark. thats all i got. please let me know if you have any additional info
thanks