Here is a good place to start
https://www.seikowatches.com/global-en/customerservice/instruction?language=English
I have purchased a Gucci automatic watch this year at a great price at a local discount store. Powered by an ETA automatic movement, a beautiful dial, and very nice leather strap. Now I would never purchase it at the inflated retail price but at the price of a nice Seiko 5 I have no issues.
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