In 2010, Panerai launched one of the most complicated and unique watches - PAM00331 Tourbillon GMT,which equipped with the most precise movement - P.2005.
PAM00331 featured Luminor 1950 case, which was Titanium made and brushed, 47mm in case diameter. 100m waterproof, which reflected Panerai's consistent pursuit of leisure sailing. Different to other tourbillon watches, PAM00331 displayed the movement of tourbillon in an unique way: on the small seconds subdial at 9, besides a small second hand, there was also a blue dot indicator. This indicator was connected with tourbillon, its rotate speed was 2 times of the small second hand, turned around every 30 seconds(tourbillon's speed). In the other side, at 3 o'clock, the hand turned around every 24 hours, the "pm" or "am" on the dial meant day or night.