Hello, i am looking hard for a face, where i can read the tide. I do not need the exakt times of the tide. The global tide is changing every 6h 12 min. So if you have a look to the timex tide, you will see a watch hand, what will be every 6h 12 min up or down for highwater and lowwater. This watch hand must be adjustable, because close to coast the times are variable and every 6-10 days it needs some changes.