"For those of you who aren't into watches (consider yourself lucky), watches can either be mechanical or quartz." Not quite. There are other types of movement,

"For those of you who aren't into watches (consider yourself lucky), watches can either be mechanical or quartz." Not quite. There are other types of movement, for example the tuning fork movement first used in the Bulova Accutron: https://electric-watches.co.uk/movement-types/tuning-fork/ https://electric-watches.co.uk/movement-types/tuning-fork/