Vintage Working Gold Tone Pendant Orb Watch By BelArt saving

Mid-century gold tone pendant Orb watch by BelArt (Swiss), in working condition. It is 1 1/2 inches in diameter without the stem and loop to put a chain in. Its condition is very good with minimal signs of usage. This watch has been timed and 12 half-turns of the stem will give you approximately saving 10 hours of running time with 2 minutes of accuracy. It comes WITHOUT a chain.
Do not overwind this watch. We do not know when or if this watch was ever serviced.