Blancpain

I noticed today when I was looking at a Fifty Fathoms watch that it said no. 843 on the back of the case. Does that mean it is the 843 fifty fathoms produced?

for each model and case material. So there will be a 5015-1130 and a 5015-3630 each with a number 1. However, the number is not necessarily representative the actual quantity of watches produced. Blancpain does at times entertain request of dealers for sp... 

So can we safely assume that if I purchased a FF Chrono with the n°92 on the back that it is the 92 second watch manufactured of the series? George

Is this a system representing the year, or the production? Or the model? Don't know how to interpret it... Thanks in advance, my friend, Nicolas

to accurately date a vintage FF. i asked him after reading his suberb posts on the FF and i thought i might eventually build up a collection of iconic watches made in 1964. it seems the only way to do this with a FF is to have its original papers. best Gr... 

I fear that it is impossible to know the Production Date... Even if you have the original papers of the watch, it will only give you the Date of purchase, not the date of production... Well, AFAIK, of course... Best, and thanks, Graham... Aaah, by the way... 

In my "black book" there is a machine typed note with all the notes for the water resistance checks. I notice the number of the back from the watch (n´XXX) is handwritten on the same note. Since the note tells me (production brassus) the date/year an...