YOU SAID:
I have a friend who treasures his watch
INTO JAPANESE
私には彼の時計を大切にする友人がいる
BACK INTO ENGLISH
I have a friend who cares about his watch.
INTO JAPANESE
私には彼の時計を気にかける友人がいる。
BACK INTO ENGLISH
I have a friend who cares about his watch.
That didn't even make that much sense in English.