Hello,
I have inherited an old IWC and would like to find out more about the watch,
such as model/ref number, year of production etc. Would appreciate any help
you can give me. Thanks!
Inside mechanism engraving reads:
INTERNATIONAL WATCH Co SWISS
1710571
21 JEWELS
PAT. APPL. C. 854
Engravings on inside of back case:
IWC PROBUS SCAFUSIA
INTERNATIONAL WATCH Co SWISS
"174" and "18K 0.750" (Hallmarks)
R807A
1703141
