To avoid causing any damage to a watch due to battery leakage, it is advisable to replace the battery soon after it runs out. We recommend that you contact an Authorized Seiko Service Center or a Seiko appointed dealer and request to have batteries replaced with genuine Seiko batteries.

Please kindly note that the battery at the time of purchase is pre-installed at the factory and it is for monitoring function and performance. So it is possible that this ‘monitor battery’ is not guaranteed to last the prescribed number of years.