Credit card for higher expenses?

Hi! Quick question, since you're probably most familiar with it - when it comes to recurring higher expenses (car/motorcycle/racing bike/Rolex), which credit cards do you use? So far I have mostly avoided “pre-loading via bank transfer”, but especially during a typical visit to a jewelry store abroad it is annoying to have to wait 24 hours just because of a €15k expense. I've heard that many people use AmEx for this because it offers high limits. However, in my opinion there is a lack of acceptance