Tristan,
3988 here is actually a serial number - Breguet puts them on the front. As far as the model itself - I cannot say I am familiar with it. Usually their Bi-Tourbs are structured a bit different, with one cage at 5, and one at 11.
__________________
Instagram - @CaliberSwiss
“A man who procrastinates in his choosing will inevitably have his choice made for him by circumstance.” - Hunter S. Thompson
|