Vintage Mens Longines Wristwatch with Unique Stepped Glass Crystal.  Never replaced the crystal (chipped) as I preferred the original and glass vintage look and the unique stepped design. It winds and runs as it should, but would appreciate a cleaning. 
Case is marked inside and out with 10Kt Gold Filled and marked 8117564. Movement is 17 Jewel marked 7826545.  Dial shows nice patina from its age.
Measures 37mm lug to lug; 24mm width including crown; 29mm length.