Question

1. This is the same watch that I lost.
2. This is the watch that I lost.
3. This is the very watch that I lost.
4. This is the same watch as I lost.
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Do #1, 2, and 3 have the same meaning?
They mean that I found that I had lost, right? #4 means that this is the same kind of product that I lost, but it is not the watch I lost. Is this right?

Answer 1

1, 2, and 3 are fine.

4 wouldn't be used.