I was looking for a new G Shock but came across this.
Looks like an excellent deal.
Comes with a 12 month Argos warranty and a 2 year Casio warranty.
Currently £40.95 on Amazon.
Watch features: (copied from eBay)
Grey easy to read dial.
Black resin strap.
Water resistant to 100m.
Date and day display.
120 lap memory.
Manufacturer's 2 year guarantee.
Model Number: STB-1000