My EX used to get sea sick once and awhile when we would run offshore. We found the "cheaper" bands like the watch band style you are talking about. They where elastic bands with the plastic pressure "ball" for the pressure points. They worked for her! She would put them on when she started to get a bit nautious, and in about 5 minutes she would feel "OK" it would not totally go away, but it was manageable (she didnt feel like hurling over the side anymore) and we went on our way. They where also cheap, like 10 bucks i think for the bands. I picked up an extra pair for anyone else besides her that was on the boat. I found mine at boaters world I think.