I am now finally selling this watch, I did consider it in the past but took it off for sale as decided to keep it longer. I have had it a number of years but don't wear it, it was always going to be a collector watch really so has been in my watch box all this time and only seeing the outside world on rare single days. The module is fully working, the EL backlight works, the Cognit Schema symbol when the backlight is on also displays as shown to denote authenticity and the discipline the symbol represents, in this case, Archaeology, one of the quirks of every Cognit Schema watch Casio made back then. It is not known exactly how many of these they made, but given how rare it is, I suspect only single digit numbers remain out there, with none available in this sort of condition/colour combo. I have recently replaced the battery on it too with an Energizer cell.The back cover open sensor is fully working, too and all buttons work. The crystal remains mark-free and the case likewise. This is the only one available on the planet in this condition (like new), I bought it as NOS, it comes with the original user manual (in Japanese) too. I will post it in a hard shell case for protection and safe keeping. At the time of purchase around 2020, it was only one of two available on the internet, and the other one sold for over £200 to someone in Japan. Selling due to consolidating my collection and build some extra cash so am selling three of my collection for this purpose. Timestamped photo is of my Samsung Notes app jotted down on the S23 Ultra. Believe it or not, I am a truly paperless person so have no means of writing anything on physical paper. I am after £200 + shipping. Shipping will be fully insured at sale value and sent using Royal Mail Special Delivery. I am not sure why the flair shows only one transaction, I have sold at least two watches here in my time on reddit! You can also look up my name on Google, all the first page of results are me and my connected accounts for your own peace of mind. Happy to answer any questions.