Its French,LIP made aircraft clocks, cannot help with specific details...Bomber or Rece possibly.
Allied and German ones go for 150-250+USD, depending on condition.
Nice item ...I have a LIP TYPE 14 CLOCK if you want a photo pm me.
Nice item! Is it still functioning?
"Much that once was, is lost. For none now live who remember it."
I think this could be used for navigation, with its chrono function.Timing turns etc.