Hey guys, I've been looking on Otto Frei and Cousins UK, can't seem to figure out what crown I should be looking for. I should note that I do not own this watch, but am looking to purchase one that may need a crown replacement. The watch in question (pulled from an existing ebay listing):

Reference 2791-1, cal. 266


I watched this YT vid (by Omega Enthusiast for those who do not wish to click ) and he says the crown is a dome top/5.5mm in diameter. Am I right to think that this onePurchases made through these links may earn this site a commission from the eBay Partner Network (e-bay link) would work? Or am I missing something completely...

Thanks guys!