I will trade here a Casio W-650 Marlin blue for another interesting watch.
Do you have a Marlin I don't have (see my schools of Marlins W50 + W100) I will be very interested. (WS-730 or WS-720 or WS-740 f.e)
I like the Casio Game watches too (GM-20, GM-301, GM-40 or GM-401)
Do you want make me an offer to buy that is possible but I prefer a trade.
Here is the photo (watch the chip in the upper right corner.) The watch is fully working with the right??? watchband and good working module and buttons.