364 SR621SW | Silver Oxide Watch Battery | 100 pecente Mercury-Free
Nominal Capacity: 30 mAh | Voltage: 1.55V - Excellent leakage resistance | High reliability Used in cameras, calculators, watches, toys, home health devices (glucose monitors, blood pressure cuffs and digital ear thermometers), computers, audio books, games, toys and more Japanese quality and consistently great performance, battery after battery | High capacity retention on storage (low self-discharge)

Seiko heritage in a battery with recades of research and development in the watch industry - Seizaiken represents incredible quality, unmatched in their energy stability and long term durability - Perfectly optimized batteries for modern quartz watches 5 battries