Operation confirmed. It may have originally been a pendant watch. The exterior has some dullness due to age. *This item was given to me by my grandmother, and the details are unknown. Size: Face diameter: approx. 2.9cm Weight: approx. 27.8g *Measurements are approximate. Please allow for some error. *The color may vary depending on your monitor environment. I try my best to get the colors as accurate as possible, but it is not perfect. Please understand this before purchasing. *This is a used item, so please judge based on the images. I try to describe the item honestly, but there may be unexpected oversights. Please inquire if you have any questions beforehand. T13017 C #keychain #pendant #watch #quartz #FORMAX #operation confirmed #working