NickO
1726
Need some help identifying a common base movement!
Hi All,
I wonder if any our experts can help me identify the base caliber used in these two watches? Up first is the beautiful manual-wind Bulgari L'Ammiraglio del Tempo with a 4-gong Westminster Chime Minute Repeater and Detent Escapement. Here's a picture of the dial (picture credit: ablogtowatch):

The second watch is the automatic Jorg Hysek Symphony, again a Westminster Chime Minute Repeater but this time with a Tourbillon:
Two very different looking watches for sure! But when we take a look at their movements, we see some striking similarities (no pun intended). First, the Bulgari DR 7301 caliber:

Next, the Jorg Hysek Symphony movement:
These clearly look very similar from the back! I'm curious if anyone knows who made this base caliber? My best guess might be BNB Concepts before they went into bankruptcy? A second guess would be Christophe Claret? I'd love any help on this one!
Cheers,
NickO