This is Part I of a three (3) part series. In Part I I discuss disassembly and servicing the mainsprings. In Part II, the movement and in Part II restoring the brass case. My wife found this 1910 Ansonia Crystal Regulator in the late summer 2018 while antique shopping. In the 1905 Ansonia Crystal Regulator … More Ansonia Crystal Regulator clock – Part I – disassembly