Hello everyone! After spending lots of hours reading all your interesting post and see the pictures, I finally got the confidence and bought the watch I have sought after for several years. Knowing that the "black connies" are an extremely dangerous market, I think I finally found a genue piece, with a ORIGINAL black dial. Its a Cal 551, ref 14381 61 SC with af 18.xxx.xxx movement dating it back to 1958/9. Now it just off the the watchmaker for at service and a new crystal! Cheers!