Fully functional and keeps time. This is a rare Girard Perregaux Gyromatic automatic 17 jewels watch from the 1940's. It has a 10k gold filled fancy case made in Switzerland marked GP Ross with serial 33342. Case has an art deco style and fancy lugs. Very clean automatic movement marked Girard-Perregaux & Co Seventeen 17 Jewels 71 AE 497 GXM. Crystal is original, has been polished and has no scratches. New German leather band.