Acrylic to sapphire conversion?

[watchnoob307]

My daily beater is a 1979 16014 which I love to death but the acrylic crystal is kind of annoying me. I see some aftermarket 'replacement' parts out there which claim to be able to fit a sapphire crystal onto the watches where an acrylic would normally be appropriate but wanted to see if anyone had any experience/details on these things. Want to check before I shell out a few hundred on the bezel clamp, press, and crystal for my watch.