Believe it or not, Intel had the idea for a smarter watch more than four decades ago. In 1972, Intel acquired digital watchmaker Microma, which had developed liquid-crystal displays (LCDs) for use in products such as digital watches. The quartz crystal oscillator was used as a time base, proving to be more accurate than traditional mechanical watches. The integrated circuit found within the Microma watch was considered to be one of the first examples of a system-on-a-chip (SoC), an Intel 5810 CMOS, as it contained all of the electronic components including analog and interface circuitry. In 1978, Intel sold the Microma name to a Swiss company and the watch designs to Timex.
Source: Intel free Press