A woman brought a Hamilton wrist watch to our meeting today, no pictures are available due to no camera. It was in a square case with the crown at the upper right corner. I have looked through my watch books and it looked similar to the Centaur but the crown was in the wrong corner of the case. It was too square to be an Everest or Gemini. When I opened the case to see what movement was in it, there was a quartz movement, relatively cheap looking with a green circuit board. I wonder if it is original? It had a base metal lower case and a 10K gold filled case top. She said it was her late husbands.