From the left: 2508R center second(Mov.27SC) and 2509A small second(Mov.12-400) The unique dagger index is attractive. In later years, dials with bar indexes were also available. This model has also nice indexes. It has the unique beauty of a 1950s steel ...
Very beautiful! I had a 2508 with that dial. Was a joy to wear. Look how beautiful the second hand is on the 2509. Little things (or not so little actually)like that and the quality of the dial making I think were better back then. I'm comparing time only...