Making an AT Chrono bezel bidirectional?

  • Need advice, mostly from professionals, watchmakers:

    having an Aquatimer Chrono ref. 3719 with an underglass turning bezel the question is if it is possible (for a qualfied watchmaker of course) with just taking out one or two parts to make the unidirectional bezel a bidirectional one, with keeping the minutely ratchets? If the construction does not allow it I'll accept of course. I'll also decline if the modification would need parts modification or other tinkering. I'd try to go for it only if it is just taking out the "rectifier" part(s).

    Thanks for any kind input!

    (PS: this watch of mine is a keeper and will never go diving, just regular use of the bezel, similarly to a bidirectional pilot's watch bezel.)

    Regards,

    Robert

    Sorry for posting in English, I understand comments in German!