Tin Man's Heart

The Wizard of Oz

The Tin Man's substitute for a heart is big enough to be a clock but the chain attached to it  and the turn of the 20th century clothing of the man who gives it to him say it's a big pocket watch.

Murder in Greenwich

A pocket watch is sometimes carried in a watch pocket with the chain attached to a belt loop but a watch picket and a watch in the same screenshot can convey the same message.