This item is discontinued and appears to be a valuable vintage piece. The model number is "C7515824-008". The belt and battery need to be replaced. (I'm not sure if this specific model can still be serviced, but quartz watches in general can have their batteries replaced.) Generally, this size is considered unisex and can be worn by both men and women today, but it seems it was originally manufactured for men. This item was found while organizing a friend's belongings after they moved. I don't know the details, such as when or where it was purchased. Please refer to the images for the size. (There may be some slight discrepancies.) I have many other items for sale. Thank you for looking.