Often represents the characteristics you attribute to that object—what that object brings to mind. For example, dreaming about your watch that has been stopping a lot lately may represent a feeling that your life has felt "stopped," held-up, or interrupted lately.
Pay attention to what stands out about the object, as well as what the object itself symbolizes to you. The significance of an object may not be its own meaning, but its context—how it's placed, how it's being used, when it appears, etc. For example, an object that's out of place or in an unusual place can mean that whatever that object represents in real life feels "out of place" or off right now.
Random objects or images often show up during twilight sleep when you are dropping off to sleep or waking up. These can seem like they carry significant meaning when they actually do not.