Bay Bonding. Micro painting. Each of them is a piece unique, with a platinum case ( 45 mm ) and the Cal UN 250 which is automatic, with a power reserve of 50 hours. Water resistant to 30 meters. Which is not usual for a Freak. No picture of the back, show...
I spoke with the designer of the winding system for 30 minutes at SIHH. Cool concept! But a little difficult to explain in a way that's easily understood.