The Citizen 4-821491 watch movement is a personalised quartz movement based on the ETA 255.111. It boasts circular graining, rhodium-plating, and gilded engraving. The movement offers a three-hand display, indicating hours, minutes, and central seconds, as well as a date function. It utilizes a stepper servo-motor with sixty impulses per minute and features inhibition and an end of battery life indicator (EOL).