Depending on the complexity of the image, it’s not likely to be as challenging as a 1000- or 2000-piece jigsaw, but it could still take a couple of hours of your day. If you choose an image or theme that appeals to you, you’ll still find it to be a relaxing and rewarding activity.
Easons has lots of 3D jigsaw puzzles under 500 pieces, see the full range of 3D jigsaw puzzles here.