Bremont caliber BE-36AE

Modified calibre 13 1/4” BE-36AE automatic chronometer, 25 jewels, glucydur balance. Anachron balance spring, Nivaflex 1 mainspring, 28,800 bph, 38 hour power reserve, Bremont moulded and skeletised decorated rotor. Some versions doe not use the day function, yet are still called BE-36AE