377 SR626SW -- SEIZAIKEN watch batteries from SEIKO are known and awarded for their excellent quality, durability and reliability. SEIZAIKEN silver oxide watch batteries are unmatched in regards to being leakproof and their voltage stability.
Seizaiken's mercury-free silver oxide batteries are manufactured in a high-tech clean room environment in a newly constructed factory. This facility was specifically designed for the manufacturing of ultra precision electronic devices and incorporates all new equipment. Within the clean room environment SII has eliminated contamination allowing us to ensure consistent quality.