This watch looks to date to the mid-late 1960's.  The watch is housed in a 10K yellow gold fill case.  It's very nicely shaped with sculptural lines and a squared off "cushion" style shape.  Overall condition is good; case has light scuffs from wear and minimal brassing.  Acrylic crystal has scratches and scuffs.  

The dial is a satin silver printed LONGINES word mark and applied gold hour glass logo and hour markers.  Condition is excellent with no signs of damage.  printed Swiss mark hidden slightly below view of bezel.

Crown is unsigned.  Originality is unknown.

Movement appears in great condition; watch will wind and run but has stopped at times.  It will require movement cleaning for regular use.

Case measures 33mm without crown.  Has 17mm lug width.