I have my ex-fiancé a family heirloom, I want to reach out to buy it back?

Back ground-

i dated a man for two year in uni- I was young, he was apathetic and abusive- it ended badly. We haven’t spoken in 10+ years.

while we were engaged, I gave him an old military watch that belonged to my grandfather. It was just a cheap navy issued one. Nothing fancy or expensive but it was my grandfather’s.
I want to reach out to ask to purchase it from him if he still has it.
my uncles are squaring up to fight for everything even though they hate my granddad and I’ll likely have nothing to pass to my son.
I was thinking of sending this

“Hi——-

I know it has been many many years since we have talked.

I hope you are well.

I’ve never been one for small talk, so I’ll cut to the chase. My grandfather is not going to live much longer, he is deep in dementia and has other health issues. The fight for few things he owns has already started and basically it’s looking like I will get nothing.

Do you still have the watch of his I gave you? The old military one?

If so I would like to buy it back from you.

I know we hurt each other but I think you can understand why I am asking.

Regardless of if you have it or not, if you will sell it to me or not. I truly do hope you are well.

kind regards

——-“

Updates
+1 y
Update- I sent the message removing the offer to buy

He responded that he will look for it and understands because he lost his uncle to dementia but that he has moved a few times, he doesn’t know what he still has from our engagement time or not.
Though I did note when I had to look him up, his last two profile photos from 2018 and 2021- are both with him in shirts I gave him circa 2009

So I’m holding out a little hope he still has it!
I have my ex-fiancé a family heirloom, I want to reach out to buy it back?
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