Many people didn't even know that there are two versions of the Vintage Cazal 607 frame. Here is present to you straight from the original Cazal line sheets, the Vintage Cazal 607/2 frame. Slight differences between the 607/1 and 607/2. The Cazal 607/2 frame is a bolder larger frame. As well, certain lines on the arms are slightly different from the first model. The Cazal 607/2 frame has never been re-made. Very few of these are existing still on the market. I have never seen one in a dig! If you have one of these badboys... hold on to them! they are worth some loot!