I'm generally pretty lazy when it comes to moving out of primary. I would say *at least* a month, and hopefully until you start to see the yeast clearing. I often leave mead in primary for 3-4 months, occasionally even bottle from primary if it clears enough. The whole autolysis thing is pretty much not a real issue for homebrewers...
Out of curiosity, what yeast strain are you using?
Packaged: Fruitcake Old Ale
Primary: Simple Cyser '15
Secondary: Why do I keep this line here...?
Bulk Aging: Cocobochet, Wild Cider (2014 & 2015)
Planned: So many ideas, not enough time to brew them....