zOwie Omega Discussion Forum

I'm packaging up my Seamaster America's Cup chronograph, getting it ready to send in for repairs. I'm worried. It has worked fine for 4 years or so. Last week, I set it on the dresser before bed, working fine, then reached for it in the morning - it sounded like a box of rocks! Clearly, something sprung overnight, as it sounds/feels like every internal piece has come loose! There's definitely a ball bearing (for lack of a better term) loose and it's freely spinning around the circumference behind the face. I've heard this is something of a complex movement - any thoughts on how bad this might be? It's out of warranty, too. Thoughts on repair costs from Omega? Any comments appreciated. Thanks.