Grand Seiko Authentication Service

The short answer is: we most probably can.

On the off-chance that you place an order for an item we can't authenticate, we'll refund the purchase.

Besides, if we're not sure about an authentication's verdict, we would rather refund the purchase.

Our expertise is earned through the millions of words for the thousands of items we've covered in our Legit Check By Ch Library, where we keep publishing, updating, curating and tweaking the world's most exhaustive Library of fake vs real authentication guides.

To find out for sure whether we can authenticate an item or not:

1. Simply click the green button below
2. Find your item
3. You'll either find your item in our list, or, if you can't find it, you'll be able to select just the brand and the item type.

Not much... just your device, information and... that's pretty much it! Even pics of your item are optional: you can upload them later at any given point.