For all Wilk Watchworks watches, it is recommended that you return it for maintenance every 5 years, or so. Just like a motor vehicle, the oils and lubricants in your watch need to be changed to keep the wear on your movement down to a minimum, and some parts, like the mainspring and gaskets, will need to be replaced, to keep the watch running smoothly. If a full service is not performed from time to time, the watch can become damaged by the oils congealing or even drying up, broken parts failing, or seals becoming brittle and allowing moisture to enter the watch. These scenarios are likely to happen whether or not the watch is being worn regularly!
The service of a mechanical wristwatch by a qualified watchmaker involves the disassembly of the watch, cleaning, inspection, oiling and lubrication of the movement in the appropriate places, and the replacement of the main spring and gaskets with new ones. The watch is then re-assembled and tested through several phases of dynamic and static testing.
It is important for the longevity of your watch to have it maintained on a regular, albeit infrequent, basis.