I am not familiar with the Momo brand but I am sure I can help you
if you give me some info. Is this a watch with hands or is it
digital? If it has hands, does it have a 2nd hand? Is it pulsing or
If its a digital, is there a place on the movement that says "AC’’?
And , what number battery is it?
There are just a few movement makers in the world, so I am probably
familiar with it, if we can identify it. You are welcome to email me
offline to figure this out if you like,
Ed in Kokomo