FS from my personal collection:
Bernhard Lederer Blu Planet Paris
39 mm c.a BLU case with its typical design
See through back with "mysterious" rotor in 18k gold.
Main dial with clous de paris finish, secondary dial with circular one.
Hours are indicated by the sapphire on the secondary dial rotating on a 12h period, minutes by the hand on the secondary dial.
Bernhard Lederer is, as you know, a long time member of ACHI and realized some notable timepieces, E.g the Gagarin tourbillon.
The level of the finish is rather high, as expected form an independent watchmaker.

My request is 2100E plus shipping