1950s IWC 'Calatrava' Jumbo 18ct Gold Vintage Watch Cal. 89
The watch is in perfect near mint condition with 'Calatrava' lugs.
Original Untouched champagne coloured dial and fine 18ct gold case. Original hour and minute hands plus sweep seconds hand. 
The movement is the legendary calibre 89; identical movement (apart from non hacking) to the one in the IWC mark 11 military watch.
The black croc wrist band and (golden) buckle are generic.
Keeps perfect time.