Seiko Calculator Memory Digital Wristwatch and spare parts As IS

One watch has the display showing...This is has much testing has been done.....installed new battery...display turned right on..as pictured light works....upper left side button turns on and off light...nothing else...pressing lower left does nothing... upper right hand button goes to M1 and M2 setting...button lower right side goes to alarm ...I have no idea if setting works nor do I know how try to set any of the alarm, time , or memory features...I cant seem to get to calculator buttons diplay..but i dont know how to get to calculator beginning point or specificlocation ...sold as is ...no returns....shipping only to the 48 states only...