This is a double skeleton mechanical watch. However, there are no markings anywhere, so I don't know the details. It works properly. It is not a watch known for its accuracy, so the rate has not been measured. I will sell it at a low price. 【Important】 I am very sorry to everyone, but due to a series of buyers who do not reply, leave receipt confirmations and evaluations unattended, I have been feeling uncomfortable. Therefore, I am being very rude, but I will assume that you agree to the following purchase conditions. By purchasing, you agree to the following conditions. Also, after your purchase, we will send you a thank-you message. Please reply to that message to confirm your agreement, and then we will ship the item. If we do not receive a reply, we may cancel the order at the buyer's convenience, so please be aware of this beforehand. ----- This is a used item, so it will be delivered as is. Except in cases of serious defects such as forgeries, we cannot accept cancellations or returns after purchase or winning the bid for any reason. Also, please purchase only if you can confirm receipt and provide an evaluation within 24 hours of the delivery completion time from the shipping company, and if you can reply to our messages. If a person with zero transaction evaluations purchases the item, we will cancel the order. We have had quite a few unpleasant transactions, so we have stated this in advance. ----- ◼︎About Price Reductions We generally do not accept price negotiations for any of our products.