Here are a few other options:
The first, and cheapest, forgoes the long sleeves and adds a pocket:
$12.95 from H&M
The second option is more expensive, but it looks great:
$39.50 from Lands’ End Canvas
I should make it clear that I am not a polo guy and $40 is a lot of money for a short sleeve shirt. I think this is a cool piece though, and the Chambray collar puts it over the top.
LEC also does a crew neck striped shirt for $24.50.
The last option I have is a little bit different. These shirts are made by R.P. Miller at a hundred-year-old mill in Pennsylvania. These knit shirts are more in line with St. James sweaters than the telnynashka.
$25 (plus shipping) from Gravel and Gold
The ‘Natural and Navy’ option looks the most nautical to me. I also found a few vintage (but unworn) R. P. Miller shirts on ebay:
More nautical looking and just under $26 shipped.