I understand the advert not appealing to you and putting you off purchasing one of the new watches, but I don't understand why it would make you sell one.
That watch isn't associated with those adverts so it's unlikely to come up in conversation, like "Oh, that's the watch from that irritating Tudor campaign in 2024".
If it's still a good watch, then continue to own and enjoy it and distance yourself from the new advertising campaign to avoid nausea.
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