I recently bought at auction this Buren Grand Prix P/W but cannot identify age or any other details.
It is a nickel chrome case, quite slim with an art deco appearance. The quality looks good and is a great timekeeper.
The movement is stamped 30 cal.
The case has the number 153678-533703
It would appear to be 15 jewels.
I have had very little information so this is my last chance
Any information would be much appreciated.