An electronic stopwatch gives a higher accuracy than a mechanical stop watch.

No, mechanical and automatic watches are powered by a mainspring, quartz watches are powered by a battery. A mechanical watch needs to be manual wound by the crown and is lacking a rotor. An automatic watch is wound by a rotor that tightens the mainspring, it can also be manually wound by the crown.

it's a watch with a mechanical movement that is kept wound by the movement of the wearer's wrist as opposed to a quartz watch that needs a battery to work.

No one country invented the quartz watch. America, Swiss and Japan all made important contributions to the making of the quartz watch.

Both a quartz watch and an escalator are examples of periodic movement.