Most visitors online was 1207 , on 19 Nov 2020
Sounds like you are about to find out. The open Brocot type escapement can be tricky to adjust, in fact Ansonia didn't really provide any "adjustment". You have to be real careful when installing bushings at the escape wheel and/or the bridge that holds the Brocot verge to maintain the correct spacing between the ew and the verge. If it hasn't been messed with you are lucky. The teeth on the escape wheel are very thin and more easily easily damaged. During disassembly you remove the visible escapement parts first including the escape wheel, verge, and crutch, which is very easy to do. These parts go back last and assembly is easy. The rest of the movement is typical Ansonia and pretty conventional..........How different is working on “open escapement” movement compared to a regular Ansonia movement without that feature?