Working antique Swank cuff link watch. Made in Switzerland movement. Most likely from 1960-60s , that my best guess. Movement was Cleaned, demagnetized, lubricated and tested through a timegrapher. Keeps very good time, plus or minus 5 seconds in a day (see last photo). Manual wind and no batteries needed. The watch have some scratches here and there. Photos are part of the description.

Please message me if you have questions. Thanks for looking