Beschreibung:

HP-01 Digital 14K Gold-Filled Calculator Watch, Model 1 Author: Hewlett-Packard Place Published: USA Date Published: 1977 Description: American-made rectangular gilt stainless steel case with bezel and screw-down caseback. Case measures 39mm. Good to very good condition, scuffs and wear, no packaging or papers, needs new battery, functional status unknown. "The HP-01 was a marvel of miniaturization and intelligent design. It was HP's first watch and their first small algebraic calculator but it was more than just a wristwatch and a calculator in the same package. It combined them to do things that neither could do alone. Its user interface combined the best of both worlds. For example, to change time zones, the user displayed the time, added or subtracted the appropriate amount and stored the result.... The HP-01 contained 6 (yes six!) chips which contained the equivalent of 38,000 transistors. Also packed into the case were three batteries. Two powered the display and one the watch circuit.... The HP-01 was adjusted to be accurate within 30 seconds a year when it left the factory and could be recalibrated if age or extreme shock altered its accuracy. This was rather unusual at the time. Early digital watches were in such high demand that many companies skipped the time-consuming calibration as a way of keeping up with demand. Many digital watches of the time ran at nowhere near the accuracy of which they were capable." — hpmuseum.org. Item#: 359041 Headline: HEWLETT-PACKARD HP-01 Gold-Plated Digital Calculator Watch