Renamed at some point to Seafarer’s Watch Cap. Previous Christmas at Sea renamed this pattern from the original “Crocheted Seaman’s Hat” to “Crochet Seafarer’s Cap” when they redesigned their Website in 2012. The pattern is the third one down on the Scribd page.

Here’s crochetbug13’s video that shows finishing the side seam using slip stitch.

And here’s Crocheters of Awesomeness’ tutorial on making the hat.