The sr63 sr521 is a popular high quality long life 155v silver oxide button cell from renata made in switzerland it has a 58mm diameter and is 21mm thick this cell comes packaged in individual packs of 1 pcs we offer wholesale price breaks for 3 5 10 25 50 and 100 packs simply order your required number of packs and the discount will be applied automatically to your basketif you require this renata button cell in wholesale volumes greater than stated please telephone our sales