need replacement bezel click spring

[gwc3]

First off, I just re-joined after being gone for close to a decade. After buying and selling a number of watches back then (mostly rolex), some other things diverted my focus. But I still have a number of rolexes remaining in the collection, plus wife's newly acquired datejust.

Reason for this post is I need to replace the bezel click spring on my 16610 sub. Working on my boat I caught the bezel lip just right popping it off (maybe 1 in 100k chance of that happening again!). Luckily bezel stayed on the boat - but spring nowhere to be found (pretty tiny to begin with). Bezel is undamaged and fits back on, but spins freely now (no spring). So I'm looking for a rolex replacement bezel click spring for the 16610 sub series. Replacing it is easy as I've had bezels off cleaning them. But, I need the part - so where can I order and get one is the question? And thanks!