Vintage Gruen Precision Autowind 25-Jewel Calendar Watch. Speidel Twist--O-Flex band. Stainless case. Circa 1960's. Scratches and hairline to crystal, scuffs to case consistent with age and use. Runs for a few seconds then stops, may need a cleaning. Anzardo?s Fine Arts does not warranty the running condition of clocks or watches. Case measures 12.7mm, band 25.4mm W.