I've started a page on the history of slide rule watches as well as surveying many of the models that have been produced:
Page 4 has what I believe to be the first summary of Casio's slide rule watches. I'm a big fan of Casio's watches, and their slide rule models were much of mystery to me. Let me know if you can add to the page.
Edwin Datschefski's biothinking.com site was a wonderful resource for years. He graciously allowed me to use the images from his (now defunct) site. Let me know if I'm missing any favorites.
Any and all feedback is appreciated. Thanks!
(Forgive the cross posting to the Pilot/Military and Seiko,Citizen,Orient forums)