ALEXANDRIA, Va., March 26 -- United States Patent no. 12,259,691, issued on March 25, was assigned to SEIKO EPSON Corp. (Japan).

"Electronic watch" was invented by Yoshihide Kaneko (Shiojiri, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electronic watch includes memory that stores a reference time and a time difference relative to the reference time, a timekeeper that clocks the reference time, a time display unit that includes an hour hand displaying a display time based on the reference time and the time difference, a calendar display unit that displays a date based on the reference time and the time difference, an operation device that includes a crown or a button, and a controller that, in a s...