The crochet version of the Library Window Watchcap is available for purchase now.
On Ravelry 
and Craftsy.
I actually made it before the knitted version.
The top down shape allowed me to try a crown, then rip back when it was too loose.
It’s amazing how much negative ease a watchcap needs.
I knew I was on the right trail when M picked up my prototype, and asked if he could keep it.
Then Dan wanted it.
And finally, K brought me the orange left overs from the knitted one, and said, “Mommy, I need a hat too, but I want one like M’s.” So I crocheted her the small size, but in a thicker yarn. It came out just right.
This is really neat!