Timex M67

The Timex M67 is a quartz tuning fork movement introduced in 1967 by Timex, also known by its base caliber DuRoWe 861. It features sweep seconds, quickset date, and a hacking seconds function; the day indicator advances when the wearer changes the time between 18:00 and 24:00. This electronically controlled movement remains in production and has been used continuously since its introduction.