An Gilded clock flatpack can be made at a workbench (Bench with lathe only) in the workshop of a player-owned house. Like when making the normal Gilded clock, this requires 85 Construction, uses 2 mahogany planks, 1 clockwork, 1 gold leaf and gives 602 experience. The flatpack can then be used on a clock hotspot in a Bedroom, either in building mode or not. This requires no Construction level and gives no experience.
The cost of making and selling a Gilded clock flatpack from scratch gives a profit of: -23,349
After completing the hard Fremennik Tasks, hey can also be traded to Advisor Ghrim in exchange for 13,140 coins being added to your kingdom's coffers in Miscellania. See Flatpack: Miscellania reselling for details.