Sumikko Gurashi Wristwatch Battery Replacement Possible Stored without being used much, but due to the nature of the rubber material, there is black staining on the strap. It might come off if wiped, but it will be sold as is. There are almost no scratches or stains on the face. The battery was replaced about a year ago, and it's running with almost no time deviation. It will be shipped with the battery installed, so you can use it right away.