Oct. 21, 2026
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<Important Notice>Notice of Emergency System Maintenance
We sincerely thank you for your continued patronage.
System maintenance for the Grand Seiko Electronic Warranty Service has been underway since 20:30 on October 21 (JST). During the maintenance period, the Grand Seiko Electronic Warranty Service will not be available.
・Grand Seiko Electronic Warranty Service
■Maintenance Period (JST)
October 21, 2026, from 20:30 - To be determined
We will inform you as soon as the prospect for service resumption becomes clear.




