Your English is just fine and yes, there’s a strong assumption that the bracelet is a gift from David. She started to wear it after her birthday, last summer, so it’s safe to assume it’s a birthday gift. David and she spent the summer in California, and David was even rumored to be seen in Vancouver Island around her birthday. I used to have doubt about it, though but I changed my mind, for some reasons, and I believe it’s from David.
No idea about the watch. It could be endorsement as she did a photoshoot in Vanity Fair for it, it could be hers, it could be a gift. No idea, but she started to wear it at the same time as the bracelet.