515-1316 / BBB87269 In this article Looking for the manual for this item? Click the matching model number of your unit below. Model numbers are located on the back of the display around the battery cover. Model #515-1316 Model #BBB87269 Related articles How do I set or reset my atomic clock? 302-604 Product Manual 512-1422 Product Manual and FAQ Purchase/Renew Plan W85961 Set Up