monte-carlo heuer 3 button dash timer

This is a very collectable highly soot after ed.Heuer&co dashboard timer. what is today known as Tag Heuer. These are so rare to find any where still for sale because collectors literally swoop them up the second they are posted. This is aiconic piece of motor sports history. ONE ISSUE IS THE MISSING MIDDLE BUTTON. THE WATCH DOES WORK BUT THE BUYER WILL NEED TO PURCHASE THE BUTTON IN ORDER TO WIND THE WATCH. I GURANTEE 100 percent the waych does function with all original parts this one was never opened until i did so my self for photos. This has been in my family for many years as to why I’m able to guarantee it works with a new button. Case number is displayed in photo number 6 and is as follows 17369. And in small hand scribed digits photo 7 showed the date it was made ( f-3-1965 )i believe that means feb, 3rd 1965 i searched for hours online looking for theaters like this and only found ones that had been sold for over 2000 and not one was in as good of condition as is this one