Works in: 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: 321, SR616SW, D321, V321, V321, SB-AF, 280-73, SR65, GP321, LR65.