Watch-save
A person, that by shear luck, avoids harm or bodily injury because they were wearing a watch is said to have made a 'watch-save'.
For example; Kristian threw a penny at Chris in frustration because he'd lost the twelfth Mario Kart race in a row. However, because Chris is so lucky, the penny deflected off of his watch. Therefore it can be said that Chris made a 'watch-save'.