Pulsar Calculator Watch Module Version 1This watch was first introduced in late 1975 - early 1976. The top model was #1822 (solid 18 kt. gold, selling for $3,950) and the bottom was #3822 (stainless steel, selling for $550). Soon after, Pulsar changed the module design for some reason and came out with a new version of the watch. 

Photos from an original Pulsar sales brochure |