A Throwback to My First Watch: The Casio CA-53W Databank Calculator Watch
Casio CA-53W Calculator Wristwatch - Simon Pegg wears a CA-53W in 'Paul'! | Facebook
Amazon.com: Casio CA-53WF-1B Calculator Black Digital Mens Watch Original New Classic CA-53 : Clothing, Shoes & Jewelry
Casio CA-53 in The Dark Knight! I knew about the CA-53 being in Back to the Future and in Breaking Bad, but being in the TDK makes it even more appealing :) :