Yes, because people are often wearing 2 watches at a time for comparison and they rub each other. Just look at the many pics on this forum of multiple watches touching each other.
http://www.spigen.com/apple-watch-case-thin-fit-42mm.html
Just for scratches. Not really for protection.
Thanks for these links !!Spigen has the clear case that will be available as early as launch day April 24 on Amazon:
http://www.amazon.com/gp/product/B0...&tag=beyondthete0c-20&linkId=OFVS4CLY7HDOGA45
They also have a rugged version:
http://www.amazon.com/gp/product/B0...&tag=beyondthete0c-20&linkId=N5AIHJ274QED24YQ
And a heavy-duty rugged version:
http://www.amazon.com/Spigen®-Prote...d=1428808886&sr=8-8&keywords=apple+watch+case
Luvvitt also has a similar clear case that comes with a tempered glass screen protector:
http://www.amazon.com/gp/product/B0...&tag=beyondthete0c-20&linkId=5YOS6FF2UQH7RX46
http://www.spigen.com/apple-watch-case-thin-fit-42mm.html
Just for scratches. Not really for protection.
That ruins the whole aesthetic of the watch for me... just my humble opinion.