This listing is for (2) brand new sealed Maxell Battery. no 364 MAXELL SR621SW Watch Battery Replacement Cell in color coded packaging Cross Reference Interchangeable with: 602, 280-34, GP64, 364, SR620SW, RW320, 51, 31, SB-DG, SB-AG, T, W1V, D1V, 531, SR60, GS1, SG1, S14 All Maxell products are designed to meet or exceed the requirements of all various national and international industry battery standards. Maxell products are routinely sampled and tested against applicable standards both internally and independently. In addition, Maxell representatives routinely participate in the development of global battery standards. Maxell cards are color coded for ease in finding a suitable replacement. Made in Japan. Warning: Keep away from small children. If swallowed promptly see a doctor. Wipe the cell with dry cloth and set properly confirming ends (+,_). Use non-metallic tweezers. Do not throw the cell into fire, do not recharge. We ship free by U.S. Postal service with normal delivery to you in 2-3 days. (THE DO CALL IT SNAIL MAIL FOR A REASON) PLEASE DO NOT BLAME ME IF IT TAKES LONGER THAN NORMAL.We ship the day item is paid for, this means we go to the Post Office Daily. The Post Office process may not be daily. They normally process weekend mail on Mondays and Holiday mail the next business day.