I lost my first one after just 6 months of marriage. We were water skiing on Merrymetting in early May. As I reached for the dock to get out, I saw it was missing. For the Seinfeld fans..."it was shrinkage!"
27 years later, we still joke that we know exactly where it is. It's just that it's about 80' down and covered in 27 years of silt.
(I did get a replacement)
I hope you find yours.