This is a 36mm stainless steel 1977 ref. 1603 Rolex Datejust with a spectacularly attractive ‘blue jean’ blue dial and steel crenelated bezel. The steel case looks fantastic and has not been overpolished. The automatic winding Rolex movement was just cleaned and is accurate. I have to say, the look of this dial made me want to hang on to this watch! Coloured dials are becoming harder to find these days.