A manually wound watch must be wound every day, and the crown should be turned clockwise to I position (or IB position for a watch with a screw crown), or the front and back of your watch should be turned several times (if it is an automatic mechanical watch style). Quartz watches are powered by batteries, so there is no need to wind them. If it is an automatic quartz watch, you can turn the crown to position I (or IB, for the model of spiral crown) for at least 1 minute, and the watch can use this time to resume normal operation. This can have a power afterglow of 16 to 24 hours. In order to charge your watch quickly, you can turn it upside down several times. Changchun Dumei after-sales service center: Room 09, Floor 8, Block A, Bank of China Building, No.727 Xi 'an Road, Chaoyang District, Changchun City.
◆ Setting time: Pull the crown to position Ⅲ, then rotate it clockwise or counterclockwise to set the required time. For the model with the second hand, it can be synchronized with the official time signal (radio/TV/Internet). When the crown is pulled out to position Ⅲ, the second hand stops. Once the time settings are synchronized. Push the crown back to position I (tighten the crown for models with screw crowns).
◆ Battery usage: Once the battery is exhausted, it should be replaced in time. If the second hand jumps every 4 seconds, it means that the battery has reached its service life and should be replaced immediately. The service life of lithium battery is more than 10 year. Never replace the battery with ordinary silver oxide battery, because it will permanently damage the movement.
◆ Setting time: Pull the crown to position Ⅲ, then rotate it clockwise or counterclockwise to set the required time. For the model with the second hand, it can be synchronized with the official time signal (radio/TV/Internet). When the crown is pulled out to position Ⅲ, the second hand stops. Once the time settings are synchronized. Push the crown back to position I (tighten the crown for models with screw crowns).
◆ Battery usage: Once the battery is exhausted, it should be replaced in time. If the second hand jumps every 4 seconds, it means that the battery has reached its service life and should be replaced immediately. The service life of lithium battery is more than 10 year. Never replace the battery with ordinary silver oxide battery, because it will permanently damage the movement.