[plop442]

That's a solid plan
Also, SE 101: DO NOT USE YOUR ITEMS UNTIL YOU'RE REFUNDED, is it so hard to wait a couple days?
You claimed PEB with the heaviest item, not the best option indeed, you can try saying only the watch was missing while the box and chargers were there, to justify the weight, if that doesn't work then do as the post above suggests, call it quits and return everything

Thanks man. I'm in the UK and I think all items that are under 500g have 0.5KG on the package. So...even if the watch wasn't in the package, the weight would have been the same on the package, because the other item is under 200 grams, and the total items would be under 500g (was 480 grams total package, I weighed it). Do yo think if I told them this it would fly?