The A. Schild caliber AS 1200 was produced circa 1950s. You will often see this movement rebranded under other names, or simply as AS 1200. The AS stands for A. Schild. Similar caliber numbers with the same linge size are 1247, 1288, ad 1317.
The movement pictured is signed Liban Watch Co. from a vintage Liban art deco watch. There is not much information on the Liban brand, but you may also find their watches under the name Libana. It appears that they mostly made commissioned timepieces for the military or smaller art deco style watches.