Pulsar P4 Executive Watch (1975)

Pulsar P4 Executive Watch 

The Pulsar P4 Executive, released by Time Computer Inc. in 1975, represented the high-water mark of the 1970s LED watch craze, combining "Space Age" circuitry with the luxury of a high-end dress watch. Distinguishable by its sleek, rectangular case and deep-red mineralite screen, the P4 was famously equipped with the "Auto-Command" feature—an internal mercury switch that allowed the wearer to illuminate the time with a sharp flick of the wrist, a futuristic alternative to pressing the side buttons. The "Executive" was marketed as a high-status item, retailing for roughly $395 in stainless steel (nearly the price of a Rolex Submariner at the time) and significantly more for the 14k and 18k solid gold versions. Setting the watch was an equally unique ritual: the P4 utilized a specialized half-D setting magnet hidden inside the bracelet clasp, which the wearer would remove and place into indented "HR" and "MIN" slots on the case back to advance the digits. While the P4 also introduced a "Smart Calendar" to adjust for varying month lengths, its high power consumption—requiring two silver-oxide batteries just to keep the "Wrist Computer" alive—and the eventual rise of energy-efficient LCDs turned it into a rare electronic artifact of the era when Pennsylvania was the unlikely capital of the world's digital watch revolution.

Donated by: Alan Sacks