The Longines 996.2 is a mechanical watch movement that belongs to the open face calibre category. It features a Breguet hairspring and an optional Reed's regulator, although the specific differences between the Felsa 160-162 and 165 are unknown. The movement is registered primarily as the open-face variant of the Felsa 161, with Ronda also registering the 160, 162, and 165 variants. The Longines 996.2 movement includes stem winding and setting, as well as a sub-second function. It was utilized in watches around the year 1932.