Yes I was going for a slightly thinner design than what would normally be expected from a conventional watch.
Rather than looking at images, I literally sketched these out in a few moments not really focusing on any detail, and just going with what I felt at that time. I was sort of trying to encourage myself to throw my ideas down and not be too scared to sketch!
These have also all been done on pages slightly bigger than A4 (Muji sketch pad, so not sure what the size is exactly!) so I will add that the sketches are quite small on the pages.
With regards to helping the sketches to stand out more with lineweights/shadows, is there any advice you can give me?