06 May 2009, 22:36
yes, it might be a Casio.
the case is typical Casiotron but the module is very simple. the first Casiotron has a whole lot mor functions on the main display.
a cheaper Casio version or an outdated module sold cheap.
Casiotron modules were sold to Tissot so you can expect a Casio design with Tissot label to reach some 300$ or more.
not worth it in my opinion.
Tissot from the 60's up till now is just a brand housing ETA, ESA or other sourced movements.