PAM01320 is the successor of PANERAI PAM00320. The new model got some interesting new features from OFFICINE PANERAI. The case is thinner and it was also upgradet to the new in house movement P.9011. This is the new Luminor 1950 3 Days GMT automatic acciaio.
Since 1930 OFFICINE PANERAI is the leading company for diving watches. Guido Panerai made the first watch for the italien military. He invented the so called: sandwich dial.
The main difference to PAM01312 is the second time zone in the PAM01320, the so-called GMT. With this function it is possible to set the local time and the time in a different time zone. This is very usefull for buissness calls with your partner abbroad. It also comes with a date at 3 o'clock and a wonderfull blue small second at 9 o'clock. The power reserve indidcater is at the back side of the movement.
OFFICINE PANERAI made this diving watch with a polished stainless steel 44mm case. The new P.9011 PANERAI in house movement is only 6.0mm thick and Swiss made of course. 239 parts deliver the energy for a 3 days power reserve. The sandwich dial and the hands comes with a beige Super-LumiNova. Matching to a antique brown alligator strap with beige stitching.
However the new Luminor 1950 3 Days GMT Automatic Acciaio PAM01320 is one of the best selling automatic PANERAI diving watches. Its also water resistent to 300 meters. If PAM0312 is the one you like but you also want to have a second time zone. For sure PAM0321 is the one to buy.