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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While we’re updating our system, all orders placed between March 28 and April 5 will not ship until after April 5. Thank you for your patience and understanding.

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