Description Exquisite pattern dial, suitable for all outdoor activities and kids should like this pocket watch. High quality retro design and excellent craftsmanship of quartz movement in this pocket watch. Setting time: Pull the crown away from the bottom of the pocket watch and turn it clockwise until the correct time is reached. Gifts for Special Days: This watch is a souvenir for anyone, even a perfect decoration for the room. Please keep the watch away from magnet to avoid making the cool retro pocket watch stop working. Product Features 100% Brand New and High Quality. Movement: Quartz Diameter: About 3.6 cm Thickness: About 2.0 cm Total Length of Chain: About 80cm Package Content: 1 x Pocket Watch 1 x Chain 1. How can I adjust time of this pocket watch? - please pull out the crown of top, and then rotate it to adjust time. 2. If battery ran out, how can I replace a new one? - There has a gap of the side of back cover, you can use a tool to open it, and then to change a new battery.