Wearing a watch that has gold plating

Q: I bought an automatic watch that was stated to be all stainless steel. However, I was looking through the  case back and it appears that the rotor (instrument that winds the watch that makes it work) might be gold plated. I looked online and it does seem like the rotor is made of steel, not solid gold. The rest of the watch components, such as the dial, hands, markers, case, strap, buckle & case back are either made of steel or crystal.  Would it be impermissible to wear such a watch if the rotor (or any other mechanical part on the inside) is gold plated?  If that is the case and I have been wearing that watch for the past 8 months, what needs to be done? Should I sell it or would that also be impermissible?

Staying away from doubtful meat

Q: I would like to enquire whether we can trust MJC and NIHT. Reason being there seems to be a lot of doubt with these as compared to SANHA. It makes me wonder how all the meat supplied to Mc Donalds and KFC can be halaal as there is a lot of animals that would be slaughtered and to slaughter an animal in compliance with shariah takes more time and care so how do we know that these animals are being slaughtered accordingly?

Wazifa for heart pain

Q: Is it permissible to make the below wazifa? If not, please advise a wazifa for heart pain. 

"As soon as you finish your fard Salah, put your right hand on your heart and recite this verse 11 times:"

أَلَا بِذِكْرِ اللَّـهِ تَطْمَئِنُّ الْقُلُوبُ 

Surah ar-Ra'd, Verse 28

Parents inheriting

Q: My wife passed away leaving behind a son and me. I know I get 1/4 of her inheritance. Does my wifes parents each get 1/6 each before remaining goes to my son - as per Surah al Nisa. The parents were not dependant on my wife but do they still get their share of 1/6. Or does the 1/6 rule only apply to parents if their son dies. So in my case, my wife' s parents get nothing. Section 2, verse 11 refers to " his" parents.