Seizaiken watch battery 364mf - sr621sw made by seiko
Seizaiken 3xx - Mercury Free - Made in Japan by Seiko Instruments Inc.
Manufactured by Seiko instruments Inc
Silver Oxide Batteries
Made in Japan
Fitted as standard in many Japanese movements (as well as others)
Excellent leak resistance made possible by the unique crimping structure
Holographic trade watermark, bringing genuine peace of mind
Mercury free
Constant availability
Manufactured by Seiko instruments Inc., made in Japan Seizaiken batteries come with an already established reputation in Asia, America and Australasia as a highly reliable and highly popular watch battery. Fitted as standard for decades in all Hattori movements (as well as others) this is an already frequently used and sought after battery within the UK and indeed the world. Being mercury free, they also comply with all legislation and bring an exceedingly sought after green element to your reputation.
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