There is no official Casio mention or records of a Casio real "LED module" watch. The one presented above is most probably an aftermarket/franken watch and thus a not genuine one
http://www.watchfreeks.com/109-casio/36 ... -fake.htmlAnyway, starting from early 90's Casio had some interesting pieces/not very common line of "led alarm" wrist watches - where the single/twin "led lights" may be used as some sort of "silent alarm" feature - that includes: one led models -Casio Led 10, Casio Led 20; ""twin-led" models - Casio Led 30 , the strange colored Casio SKX-1300 and the rare Casio Overland W 920 - from Seymour Powell Design.
http://forum.pocketcalculatorshow.com/topic/casio-ledsI have 3 out of 5 above mentioned models (led 10, led 30 and W 920) :)
BTW, which is the Seiko LED model You've mentioned above???
I've never heard about a Seiko LED watch...
Regards,