Dracha wrote:
wholeheartedly recommend 'chronodeco'
but there's somethings incorrect , dial, maybe the hands and the sliderulering have all been redone and not in the best way
good luck with the restoration as parts are very hard to come by

on all accounts.
Craig (forum member chronodeco) would be the person to turn to, BUT, as Rene has said, quite a few things seem quite problematic.
Here is an excellent article about the early Chronomats:
http://forums.watchuseek.com/f39/breitl ... -9103.htmlThe serial number dates the watch to 1945, but the dial has been refinished (both inner dial and dial ring), and has a design that I at least have never seen on an authentic piece.
The missing bezel will be very, very hard to replace, your only hope would be to find a donor watch - you will need a bit of luck and quite a lot of patience to find one - but then you would still have the issue of the wrong dial ....
Still, as it probably has a lot of sentimental value for you, when you have all the parts (crown and crystal are minor issue, hands seem correct to me), Craig could restore it to perfection.