THIS IS A VINTAGE UNWORN MEN'S CASIO ALARM CHRONOGRAPH CA 501 MODULE 437 CALCULATOR WATCH WITH ALARM AND STOP WATCH. ALL FUNCTIONS ARE WORKING WELL AND IT IS IN EXCELLENT CONDITION AND IS UNWORN. IT'S FROM THE 1990'S. NICE ORIGINAL BAND.  THE PHOTOS ARE EXTREMELY CLOSE UP AND I BELIEVE THE WATCH LOOKS BETTER IN PERSON. THE CASE MEASURES 34MM MM WITHOUT THE CROWN BY 41 MM LUG TO LUG. GREAT WATCH!