Ron_W
1575
Hello George, it is from 1974 so you are spot on ! It is a ref 3203 or 3070 ( both are used ) and sometimes caled ~International~ model for lack of a name. Togther with the da Vinci line
Jul 12, 2020,06:43 AM
the first IWC watches to house the Beta 21 movement, the first Swiss collaboration ( CEH ) quartz movement. Smooth running seconds hand and it humms a little like tuning fork movements.