Most visitors online was 1990 , on 7 Feb 2022
From what I can see the dial doesn't look too good. Looks to be a lot of hairline cracks. We need to see photos of the movement. Is the movement marked as to maker? If not, how is it attributed to Schmutzler?
Claterbos, Viennese Clockmakers and What They Left Us, International B.V. Holland, 1979 Does not list a Schmutzler but does list a Schmutz, Anton, Working 1842 until about 1883. He was in the district of Neubau, at Halbg. 7 in 1838. Not there in 1883.
I can't actually read it (German) but something is mentioned about making pendulum mantel clocks.