De Bethune's DB29 Maxichrono Tourbillon is a chronograph like no other. The mono-pusher chrono swaps out the conventional subregisters for five central hands and counters for 60 seconds, 60 minutes, and 24 hours. Inside is a mechanical hand-wound 49-jewel, 36,000 vph, DB2039 movement with a power reserve of 5 days which can be seen via the titanium caseback cover that opens to fully reveal the highly complex movement.
Bell & Ross shows their horological skills with the BR-X1 Chronograph Tourbillon
The ultimate Bell & Ross gets highly complex limited edition.