After installing the GMs to Sierra and Friends I was eager to try out the Auto Unlock feature with the Watch as passwords generally suck and re-entering them time and again sucks more.

With all my devices on the same Apple ID and updated, I went to the Security prefs on the Mac and lo … no option for it. After reading around I learned all the devices must be marked as Trusted in iCloud, which means you need Two-Factor Authentication (not Two-Step). I set this up and re-added each device to iCloud until they were marked appropriately. Still no option on the Mac.

Apple Watch Hands-On: The Wristwatch Just Caught Up To The 21st Century | aBlogtoWatch:

The Apple Watch in steel has a more durable case, sapphire crystal, as well as ceramic elements. I have hypothesized that it will be priced at around $500, but other sources have estimated that the steel Apple Watch will be priced as high as $1,000 – a price that would not surprise me.

Apparently the $350 is for the Sport only.  Ouch.