> Casio makes some relatively inexpensive "dive" watches that will > suffice as a backup time piece. The Aqualands are nice toys as > others have indicated. The Casio's that I am familiar with don't > include depth gauges as the Citizen's do. Casio makes the DEP610 and it does include depth. Casio description: http://www.casio.com/watches/product.cfm?section=14&market=0&product=637 For sale on ebay: http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1630851196 or http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1631866193 for $117. Hope this helps! Richard