I've had the 556i for a few years and love it. I prefer it on a strap. The black glossy dial is mesmerizing and the way the crystal is coated, it seems to disappear. A really nice every day wear for me.

My wrist is 16.25 and I find my U50 fits perfectly, but I wear it on a strap. I have the Sinn silicone strap but it sticks out too far for my wrist. I don't have the bracelet. The only time I go diving is if I'm walking by the lake with my beer and fall in. I wear it as an every day watch. It's wonderfully comfortable and extremely easy to read.