This is a Hamilton pocket watch. Diameter: 45mm, Weight: 60g. The mainspring has been wound and operation for a certain period of time has been confirmed. However, accuracy and operating time have not been measured. *Please read before purchasing.* We try to describe the product as detailed as possible and take clear photos, including any scratches, but there may be oversights. Please carefully review both the description and photos, and feel free to ask any questions before bidding. The condition of the product is as of the time of listing. Also, the condition of the internal mechanism is unconfirmed unless otherwise stated. For items described as working, we record a video of the watch running during packaging before shipping, but we do not guarantee the presence of operation or accuracy after shipping. For items with accuracy or operating time listed, the measured values are only as of the time of listing, so please consider them as a reference. Also, if you intend to use the watch, we recommend having it disassembled and cleaned by a specialist. We take great care in packaging, but as these are antique items, we do not accept returns for any damage (malfunction, detachment of parts, etc.) that may occur during shipping or after arrival. Regarding the materials (gold-filled, solid silver, alloy, etc.), we describe them as accurately as possible based on the markings and texture, to the best of our knowledge, but please forgive any errors. Accessories used for photography (desk, watch stand, ruler for size comparison, etc.) are not included with the product unless otherwise noted. We do not accept requests for significant price reductions. Such comments may be deleted without a reply. We aim to ship within 48 hours of purchase, but we will contact you if it will take longer due to business trips, etc. We do not issue receipts. Reselling the purchased item is not a problem, but please refrain from using the photos and product descriptions.