TAG Heuer

After owning this piece for more than a year, I just recently realized something (else) very unique about it. Sure, I knew it was something special, but then I noticed something on the back. Actually, there are three unique details in this photo. One is c...  

This was a quick photo to illustrate my point. Aficionados might notice something unique to this particular Carrera Heuer-01. It might take a little detective work to figure out.

The reference number. CAR2A5D There is nothing documenting this as a bespoke piece, which it is. If you look up the reference number online, it’s a ghost! It doesn’t exist (at least online)...until now!

Jack sig, red column wheel

1) Isn't that Jean Claude Biver's signature??? 2) Obviously the reference number is unique and separated from the serial number with the word Titanium in the middle, instead of two lines of text on top of each other. 3) The ring around the crystal is blac... 

...that and the unique Reference number.