The Watch & Movement
Panerai Luminor Marina reference PAM01312. Inside is the trusty automatic calibre P.9010 movement, with a 3 day power reserve.
 
Dimensions
Case size is 44mm, with a lug to lug width of 53.5mm and thickness of 15.6mm. Lug width is 24mm. 
 
What’s Included
This Panerai comes with two straps, a OEM blue rubber and black alligator (both tang buckle). Included is the box, booklet and warranty card (undated).