This question was posed by Patrick_y I relayed it to Keiko, my contact in the GS PR department. It bounced across the world from California to Japan then the responsible person at the Seiko HQ in New Jersey and the answer came back to me. "We are very muc...
They have a small drop off window. Not much to see really. I brought an orange monster there to be serviced there a few years ago. Not sure if they are open to the public given the circumstances.