Despite the fact the 2599 is terribly underappreciated, it´s a nice movement inside. The watch doesn´t reveal and chances to see a GP 30C0 column-wheel chronograph are not high, so here´s one of them (for a Lady Chronograph) in the making:
I think there´s more to the ref. 2599 than apparent And hard to beat for what it can be had.
It is one of the greatest bargins on secondary market, I may say. I tried to capture the curved dial, although it didn't show as well as I would liked. Nice curved case which fits my 6.75" wrist extremely well My only disappointment is with the tang buckl...