I have my eyes on a Panerai GMT lumino model (44m). Does anyone have any experience and know what movement the watch uses? It's retailing for about US$4,100. I really like the design and the fact that it's bulky as I have a big wrist. I know it's a watch used by the Italian navy and it's quite popular in Europe. The usual feedback is that it's overpriced and quirky stylish among a few.