Mondaine Watch SBB Giant Black White A660.30328.64SBB. Official Swiss Railways Watch. Black, white, big and bold is the self contained statement for this new extension to the successful Giant range of Mondaine SBB watches. The new Giant uses the black IP plated steel casing to frame the original Swiss Railway face for a prominent monochrome look. All the new Giants come with black leather straps and mineral glass to complete the drama of the collection.