Hi Graham
I just got this watch in time for my birthday... It is a uncommon Jumbo First Generation Kontiki Date ! from 1960. To be honest I have been looking for any first year Kontiki for a gift for my Dad ( but that is another story). I found him a watch about 19 months ago. That one was a std size non date Kontiki from about 1958. I saw this one for sale and between the jumbo case size approx 38 mm and the early quickset date feature and ( date wheel was black with gilt print type!) what sealed it was that it has its original Gay Freres Kontiki signed bracelet I had to get it .... well the box came just in time for my birthday !!
These are the Sellers pics for now....
movement and case are clean and bright !
and finally with the bracelet !
Good Hunting
Bill Sohne