YOU SAID:

A watch in my hand will be right twice a day

INTO JAPANESE

私の手の時計は1日2回正しいだろう

BACK INTO ENGLISH

My hand clock will be right twice a day.

INTO JAPANESE

私の手時計は1日2回正しいでしょう。

BACK INTO ENGLISH

My hand clock will be correct twice a day.

INTO JAPANESE

私の手時計は1日2回正しいだろう。

BACK INTO ENGLISH

My hand clock will be correct twice a day.