Gerald over at The Grand Seiko Guy has put together a comprehensive guide to the different variations of the original Grand Seiko model 3180 aka “First”. There were printed, carved and raised logo versions of the dials as well as multiple variations of these. This article details the differences and explains what to look for if you are trying to track down an original piece. There are numerous examples of franken models out there so this should be an invaluable resource for people looking to purchase the First Grand Seiko model.
Check out the full article here - A guide to the Grand Seiko “First” dial variations