YY77
·I hope you also asked TAG to confirm the number of Jewels as 13, not just the "Swiss Parts" vs "Swiss".
As an alternate source of evidence, these sites also state your movement should have 13 Jewels, but your movement states 6.
https://watchesandbeyond.com/produc...-date-divers-quartz-mens-watch-cay111b-ba0927
https://watchcharts.com/watch_model...r-300m-quartz-chronograph-43-cay111b/overview
Along with all the photographic evidence showing the visual differences, the fact that your movement only has 6 Jewels should be sufficient to convince ebay. Or at least I would hope so. With the huge number of fakes out there, there's no way TAG Heuer could be bothered to verify all of these on a daily basis.
https://watchbase.com/tag-heuer/aquaracer/cay111b-ba0927
https://watchbase.com/ronda/caliber/5040-d