What kind of chain is this?

[ifmelfalls]

Would this be a c link chain? I apologize for the lousy picture. My camera is being difficult and it's quite fine so it was hard to capture. 

If this picture isn't clear enough I can try to get a better one. Thank you!

[change4charlie]

I think it's called a flat herringbone??

[ifmelfalls]

That's it! Thank you!

[favoritegram]

I think it is serpentine

[charmaffair_2009]

Diamond cut flat herringbone to be exact.Charm