Giving this a test run today. Found it in a box of watch junk I got a couple of years ago. Completely dead, choked with mud and corrosion, no strap, movement/battery corroded and dead as a dodo. It's probably only worth about $5 but I just had to rescue it, so out with the movement for a case clean. Pushers were removed and de-crudded, re-lubed and re-installed. Putting on the tiny C clips was very intense (but I didn't lose any this time). The movement was stripped, cleaned, all contacts scrubbed and a brand new battery went in and now it's a goer. The digital calendar only goes up to 2010 so have to cheat on the year to get the right day/date combo and now I have to figure out how to sync the tide readings to local time (any surfers ever use one of these?). Now on a NATO for occasional wear at the beach.