A 40.5mm stainless steel manual-winding watch with a date display. It runs when wound. It was about 3 minutes slow per day. The time can be set by turning the crown, but the date could not be advanced. It may not have the function. The date changes when the time is advanced. Other sites say that the date can be advanced by moving the hands back and forth between 9 PM and 12 AM. For those who can repair it, or for parts. - Brand: CITIZEN HOMER DATE - Size: 40.5mm - Functions: Date display - Material: Stainless steel Thank you for viewing.