In an interesting development, Jr NTR has sported a Richard Mille watch worth Rs 4 crores to RRR's promotional event that was held the other day.      Tarak was seen wearing a Richar Mille F1 edition watch as he attended the RRR's promotional event in Chennai.      This is a limited edition watch that costs a whopping amount of Rs 4 crores. This is one the costliest editions in the Richar Mille series.  Tarak is a watch freak and he liked collecting premium watches. H