Patek Philippe

I need help to identify this early Calatrava in Staybrite steel stamped in the case back FB François Borgel the famous case maker of the beginning of the 20th century, normally known for waterproof Calatrava Ref. 565, 437, 1463, pionnier of the water resi...  

Except most probably the crown for which I have serious doubts… but obviously we would need more photos to judge… Quite a nice steel Calatrava 😍😍😍

Yes but as you see in the case back have no ref number, only the case number followed by 13 and FB stamp wich is François Borel case maker. Me too I look for more information about this model because it's not a ref. 96 and the movement is not a 12-120PS o... 

hi Joe, I bought your watch and I want to communicate with you, can you send an email or an Instagram account plz my Instagram account: [External link to personal IG account eliminated --- FabR] ...  

You see the source, so you can search with the start of the movement or case number to see if it is consistent… Dirk ...  

Yes is probably a 96 or 437 steel of 1930's but the particularity is that have no ref number stamped and the movement is not a 12-120PS

The case is old and pitted. The case back looks authentic with FB and a PP stamp and number ( although the car number looks bit wonky) The movement looks like a very old pocket watch movement way before any reference numbers were used Also loko much clean... 

Here is a correct one: ...  

So what is the ref. ? 96?

That's flattering to say that the movement looks more of a pocket watch. This movement is not a 12-120 but looks like this one, made André Zibach a famous watchmaker of PP inventor of the Gyromax balance, I send the link ...