To a bike thief 1- 2 hours isn't a short time - is a life time !
As a minimum you need two different types of lock, in that they require two different methods to break them. forget 99% of cable locks, they can be cut in milliseconds with minimal throw away equipment. A substantial chain, in a shroud for paint protection, with the best padlock you can afford, to lock the frame to rack, post, whatever. Back this up with a D lock, New York for preference, and as tight a fit as possible, this also to secure the frame, then, and only then, maybe a cable to secure the saddle, wheels etc. Yes, its a lot to hump around, but its either that, or get some really good insurance.