Manor, Globus, Caves du Palais de Justice in the Old Town.

Try Movenpick in Meyrin.

You can find those at the bigger Coop although why would you buy something like that, I don't knwow.

Aligro

+1 

Aligro is where restaurant owners go... they have almost everything.

Don't go there execting to find wine or champagne. - unless they hid it when they saw me coming !!

They have about 200 types of bubbly and 100's of wines from all over the world. 

http://www.aligro.ch/fr/les-produits/boissons-et-alimentation-generale/cellier/

Thanks Charlie - somehow we missed it !! Managed to find the beer but no signage to the other - we will go for another loook!.

Cheers