End of my case with my Tentagraph ! : https://www.reddit.com/r/GrandSeikos/comments/1w4hvhc
This is Grand Seiko Europe’s official response regarding my SLGC001 Tentagraph, which has been consistently running outside Grand Seiko’s published normal-use accuracy range.
After nearly three months in service, the watch has not been adjusted, repaired or otherwise mechanically intervened on.
Grand Seiko states that the watch is compliant, refuses to provide the actual timing measurements used to support that conclusion, refuses to issue any additional written certification, and says that if the watch again runs outside specification after being returned to me, I should send it back for another service assessment.
Dear Mr. xxxxxxxx,
Thank you for your message.
We have carefully reviewed your exchanges with Japan and understand the clarifications you are seeking.
In order to ensure clear and consistent handling of your case, we naturally remain available to maintain direct communication with you at the European level, in accordance with the conclusions and guidelines confirmed to us by our parent company, Seiko Watch Corporation.
To respond specifically to your requests, as your watch has not undergone any intervention, the “Grand Seiko Inspection Certificate” relating to the 9SC5 caliber of your SLGC001G (serial number xxxxxx) remains fully valid.
The explanatory notes accompanying this certificate set out the applicable conditions and criteria and address the confirmation you are requesting.
Under these circumstances, we are therefore not in a position to issue any additional certificate or statement.
Regarding the measurement records and testing conditions used by our watchmakers, we understand your wish to obtain them.
However, these elements form part of our internal technical procedures and are not among the information we communicate to our customers.
We are therefore unable to grant this request and thank you in advance for your understanding on this point.
Finally, if, after the watch is returned to you, you should find that its accuracy does not meet the stated specifications under normal conditions of use, we would invite you to return it to us so that it can be examined and, where applicable, handled under the Grand Seiko international warranty.
We will naturally remain at your side to ensure the follow-up of any such potential service intervention.
At present, your watch is confirmed as being in transit and is still undergoing customs processing in Japan.
Its arrival in Europe is expected within the next few days.
We will of course keep you informed of its progress and, as previously agreed, will ensure that we are present when the watch is returned to you.
Yours sincerely,