We have been discussing this separately and wanted to add the ridiculous advice you got from the Officine Panerai India Country Manager to have your watch checked just before the warranty of the watch expires.
Are more people here doing just that and with all their watches as this is the very first time I am hearing this and it doesn't not give a lot of confidence in the quality of the product!!
You need to push this as a "goodwill" case by Officine Panerai, after just 3 ½ years of use a part like the crown function should not break down just like that.
Dutchman, Panerista since 2014 and learning
PAM389 and PAM372 and a bunch of straps