Mine took 4 months but yep-- the stitching on the buckle gave way.  I find this ironic because Levis made its reputation by riveting the pockets on jeans (they didn't invent jeans, just the riveted pockets) and if ever there were a case for riveting instead of stitching...  Full marks to Amazon Customer Service for fixing the problem for me, but I think this one needs to be taken off the market and Levi's should offer a warranty against manufacturing defects.