It's pretty darn light to me, and seems really comfortable. I have thin wrists, but have a few notches to spare, and it doesn't feel it look overly large to me at all.
When you're ready, can we see it on your wrist as well? I know we already had some pictures with a comparison to a very small wrist but when it says 1.8 inches that feels like an above average watch size. I doubt it's too large, but I know I would appreciate another reference picture.