automatic watch
Mechanical timekeeping device that is driven by a spring that winds by motion of the wearer
en-GB/ˌɔːtəˈmætɪk ˈwɒt͡ʃ/
en-US/ˌɑdəˈmædɪk ˈwɑt͡ʃ/
Mechanical timekeeping device that is driven by a spring that winds by motion of the wearer