Imado Clown - QBert at arms lengthImado Clown (19??, LCD, Watch Batteries, Model# ??)
Battery type: LR41 (or equivalent)
Obviously it's Q*Bert (and I believe it's Neslonic's Q*Bert watch just re-labeled, but I'm not sure if it's an official license or a 'bootleg'). Cresta released a handheld Clown game that is exactly the same thing (even the same characters and text font).
** Have a look at the "real" Q-Bert watch under Nelsonic and Q-bert - it does not list it as a watch game, though it is indeed.