Have one to sell? 
Deliver to: Unknown Ships in 24/48 hrs Works in: Car remote, key fob, keyless entry, watches,
computer motherboards, calculators, PDAs, electronic organizers, garage
door openers, toys, games, door chimes, pet collars, LED lights,
sporting goods, pedometers, calorie counters, stopwatches and medical
devices.
Equivalent to: CR1620, DL1620, ECR1620, BR1620, 280-208, DL1620B, BR1620-1W, CR1620-1W, KCR1620, LM1620, 5009LC, L08, EA,
