Produced circa 1917, size 16s, model 9. Case marked: Guaranteed 10 Years/Supreme/IWC (Illinois Watch Case)/5379952. Movement serial number is 3173318. Good working condition, one light hairline on face, light evidence of wear appropriate for age.
Produced circa 1917, size 16s, model 9. Case marked: Guaranteed 10 Years/Supreme/IWC (Illinois Watch Case)/5379952. Movement serial number is 3173318. Good working condition, one light hairline on face, light evidence of wear appropriate for age.
