In looking around at older Omegas, and older watches in general, I have noticed that on the bottom of the dials a lot of them have either "T Swiss Made T" or "Swiss Made T" what is the difference in these 2 markings? Is a single T a giveaway that the dial is either refinished or fake? From research my understanding is that the T markings are for the tritium rating and there is "T Swiss Made T" and then there is "Swiss Made T<25" but haven't seen any mention about a "Swiss Made T" marking. Any help would be greatly appreciated!
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