I have one of these . It's fab; I can fit everything I need for a week or two, and it stops everything from tangling. You can put big necklaces or watches in the clear zip bits at the side. You can't see smaller necklaces or chains you've put in the small pockets (though the ends of the chains will be showing so you can identify them!). Good customer service too.
My travel jewellery box is no thing of beauty, but it is totally practical and no tangling as everything is separated. It's a small craft box with movable separators. Ugly as anything, but I can see exactly what's in there and it's stood up to a huge number of trips with no damage to anything