Wrist circumference: Approximately 18 cm Face: Approximately 33 mm It is, of course, working! This model is a very popular product! This is a product that I would definitely like you to see in person! Thank you for your consideration! * This item was purchased as an authenticated genuine product. The belt is probably not the original. The surface is clean, but there is deterioration on the back. As this is a vintage item, please understand that it is non-refundable and non-returnable. We would appreciate it if those who are familiar with watches and those who are interested in vintage watches, and those who can understand the above, would purchase this item. Please note that the display stand is not included.