勞力士，不銹鋼腕錶，配計時功能，“迪通拿”，型號6265，約1975年製

The dial features the rare Sigma symbol on either side of the “T Swiss T” designation and omits a red track or red Daytona designation. The symbol indicates that the baton numerals and hands on a dial were made of gold, in this case, white. The case is displaying strong proportions and sharp edges, and chronograph pushers are the correct version.