mysql match against with same score on different input
Ah, you want a higher score for exact match?  Instead of

ORDER BY `score` DESC


do

ORDER BY `name` = 'Superocean Héritage 42mm' DESC,
         `score` DESC


The = test will be 1 for an exact match, else 0.  So, effectively, it overrules whatever the score returns.

(Alternative ways to phrase it involve IF or CASE).