I tested it with a new battery, but it didn't work. Pocket watch with a steam locomotive design, featuring an Arabic numeral dial. - Design: Pocket watch with a steam locomotive engraving - Dial: White dial with Arabic numeral markings - Chain: Comes with a metal chain - Size: The pocket watch has a diameter of approximately 4cm - Opening/Closing: Features a lid design that can be opened and closed Thank you for viewing. Compatible with SR626SW batteries, but I tested it with a new battery, but it didn't work. The locomotive emblem is marked with "2301," but I do not know the vehicle model number, etc. Operation... Defective (non-functional)