Yes you need a new clock you can buy it from this link. What color is this because you will also need the overlay.
Thanks for the quick response. What is the difference in the Sear's part # XXXXX and the part you recommended(NNN) NNN-NNNN How do I know I will get the right (white) color? The model of the oven is(NNN) NNN-NNNN2600. I believe the last four digits indicates the color of white.
This is just a sticker that covers the control pad.