Fashion Cosplay Movie Deadpool Black Quartz Pocket Watch Men's Necklace Chain Jewellery Pendant This is quartz pocket watch with battery. It is okay to dip some water ,but don't wear it to swim,dive,bath or put it under water Set the time: Please pull out the crown to position B to adjust the time,then press down to A position.It will work. Replace the battery : Use tool to open the back cover,take up the white plastic inner cover,the remove the battery to replace it Best Service : Not satisfied with your order? Please feel free to contact us. You can choose to exchange the item(s) you ordered or to receive a full refund. We provide one years of guarantee for this watch. Nice for collection,this is a best gift for mens to birthday,Christmas You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!