Based on the world record nomination from Europe Records Institute (EURI) and Decision No. WK/USA.INDIA/885/2022/No.341, World Records Union (WorldKings) officially Pulsar P2 as world's first electronic digital watch with LED display on August 11th, 2022.
The Hamilton Watch Company is a Swiss manufacturer of wristwatches based in Bienne, Switzerland. Founded in 1892 as an American firm, the Hamilton Watch Company ended American manufacture in 1969. Through a series of mergers and acquisitions, the Hamilton Watch Company eventually became integrated into the Swatch Group, the world's largest watch manufacturing and marketing conglomerate.
The first digital electronic watch, a Pulsar LED prototype in 1970, was developed jointly by Hamilton Watch Company and Electro-Data, founded by George H. Thiess. John Bergey, the head of Hamilton's Pulsar division, said that he was inspired to make a digital timepiece by the then-futuristic digital clock that Hamilton themselves made for the 1968 science fiction film 2001: A Space Odyssey. On 4 April 1972, the Pulsar was finally ready, made in an 18-carat gold case and sold for $2,100. It had a red light-emitting diode (LED) display.
The Pulsar P2 was the first digital wristwatch to enter mass production. It became available in 1973 and made its public debut in the opening scene of the Roger Moore James Bond film Live and Let Die. After this, it became a sensation and was worn by movie stars and other celebrities and high rollers. The P2 cost $395 in 1973, which was more than a Rolex Submariner at the time.
According to Wikipedia