I'm a mid-20's dude with a 6" (~152mm) wrist. Went into the Tacoma, WA Apple store for my 10am appointment today and tried on two watches, the 38mm SS milanese loop and the 42mm Sport Black. Bear in mind, I ordered the 38mm Sport Black last night at 12:03 and have a 4/24-5/8 delivery date. What everyone here is saying about the photos vs. real life optical illusion is 100% completely true. I was really blown away at how small the 38 was... not actually TOO small but just more 'real-life' small than what the majestic photos Apple has on their website make it out to appear. The milanese loop was very smooth and 2 reps who were helping me agreed that it looked really nice and it was really the better size for me. I wanted to try the space black as well (since that was the one I ordered) but since they only had it in 42, I got to experience the difference back-to-back. I'm not really one to wear a big honkin' watch and look like a tool... but this thing honestly felt right - even on my twig wrists. I was expecting the case to cover or even protrude off the ends of my wrist but it didn't, I even thought the 42 was actually the 38 at first. This illusion is weird and kinda freaking me out because from the beginning, I have had no doubt in my mind on going with the 38. One thing that really struck me is that for the next gen when they thin this thing out, there is no question that the 42 will be the watch to get for myself as a dude. It's so very close, thickness-wise, to not looking like you have a computer strapped to your wrist. Honestly, wearing it in person feels like Apple already thinned out the design from all the previous pictures and renders that have been circulating, I was very impressed at how both watches felt 'right' and how some of these 42mm pictures from try-on's look completely ridiculous and almost 'fish-eye' when compared to reality.