This is a hardly-used and boxed with full kit Casio G-Shock GM-2100CB-1AER. Ebay wont let me put a link to the specs here, but 3 seconds of googling will help you out - screenshots from the casio site attached. It works a treat and is a real tank. Sold out on Casio europe site at £149...

Enjoy!...and if you dont like this one, see the other watchews im selling as part of project: sellingwatchestogetamoreexpensiveone...