these dials have also some peculiar features : 1) particular finish : flat ( while black dials for cosmographs have a rough finish) and matt ( no glossy coat above ) . 2) double " T-SWISS-T " at 6 or just " SWISS " with one or two ( ! ) underlines , or even with a double " SWISS " and/or without the damned underline. 3) the main colour of the dial can be either cream or clear white . you find them on early 6239 ( roughly in the 900.000-1.000.000 range so from the middle up to the end of 1963 ) this AFAIK is the very first one with the word " DAYTONA " ( small size ) on. here you have some other examples of this dial :