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Customer Service

Please contact us below if you have general inquiries or need help with your Grand Seiko timepiece.
Grand Seiko Corporation of America - Service Center
New Jersey
1111 Macarthur Boulevard
Mahwah, NJ 07430
+1-800-334-0962
custserv@grand-seiko.us.com
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© Copyright 2021 Grand Seiko. All rights reserved.
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