An engraving that looks scratched, uneven, or partly polished deserves attention, but a listing photo alone can't tell you why it looks that way. It may be wear, repair work, a poor image, or an attempt to change an identifier. Don't guess.
Pause the transaction
Ask for a clear photo of the actual watch and an in-person inspection by a qualified watchmaker. Keep the serial private while you seek advice. If the seller says the number is irrelevant or pressures you to pay before inspection, step back.
A search needs a readable, verified number
Searching a damaged serial can produce a no-match because you entered the wrong digits. A database cannot determine whether the engraving is original or whether the watch is genuine. Have the number read and the watch examined before relying on any result.
Compare documents and keep the record
Ask for paperwork that identifies the same piece and compare its number with the physical engraving. If the number cannot be read or the documents don't agree, do not proceed until the discrepancy has a verifiable explanation.
When a serial looks altered, treat that as an unresolved identification issue. A low price or a full box set doesn't resolve it.
Get the Engraving Checked First
Ask a qualified watchmaker to inspect a questionable serial before you search or pay.