1) Kitchen Timer - Got an super-cheap Egg Shaped timer.
2) A 608 bearing (or print one)
The reduction ratio is 4:1, so in 1h of time lapse, the came will rotate ~ 90 degrees (take this in mind not focusing the object in the start of the time lapse).
Instructions: Pull the top part of the eggtimer apart. Release the bottom screw and mount the internal mechanism in the base section. Secure with the screw.