Juvenia Art Deco Swiss Galalith Sterling Silver Purse WatchArt Deco Swiss travel purse watch dating to the 1920searly 1930s. The exterior case is crafted in a green galalith style material. Galalith, an early semi synthetic material developed in the late 19th century from casein (milk protein) and formaldehyde, was widely used during the Art Deco era for luxury accessories because it could be polished, carved, and dyed to imitate natural stones such as jade or malachite. The exterior of this watch is crafted