This is a watch from one of the victims of which bombing?
Correct answer: The atomic bombing of Hiroshima in World War II

Dr Debunker
"It's 8.15 and that's the time that it's always been." from the song Enola Gay by OMD.

Rosie
Player #25874027, The atomic bomb was developed and used to end the war against Japan in 1945, 2nd world war.

Tom
Been there. Don't remember the watch, I do remember the burnt, charred uniform of a school girl.