I googled this, and found quite a few articles.
A simple 7 hours pressure slow-cooker eggs:
http://www.fourpoundsflour.com/the-history-dish-seven-hour-eggs/
- Put eggs into pressure slow-cooker
- Cover with water
- Set pressure cooker to low
- Cook for 7 hours
Similar to above, but only 1 hour in pressure cooker:
https://www.reddit.com/r/Cooking/comments/2w0rr0/pressurecooked_hamine_eggs/
5 hours oven roasted eggs:
http://fxcuisine.com/default.asp?language=2&Display=64&resolution=high
- Soak eggs into warm water for few minutes
- Place the eggs in 105C/220F oven
- Cook for 5 hours
Sous vide experiment, it doesn't work:
http://mengwong.livejournal.com/81737.html
They are very interesting!
I like the roasted one 
