tool watch as many other worldtime watches. I tend to believe that the cosmopolite range from GO is one of the only mechanical worldtimers that comes close to fulfilling the basic function of a working worldtimer. But apparently that is not what PP WT lov...
there are limitations. I think VC tried to put more indications around the disc on one model to reflect better the DST or quarter/half an hour timezones possiblilities.