I purchased an Invicta mechanical skeleton watch with the Seagull 3600k, and after some sleuthing I find that it is a 10 Jewel movement. This is not to be confused with other Seagulls, like the TY3600, which may have 17 jewels or more. My concern is, although it runs well and accurately now, what friction points are not protected by jeweling in this budget movement, so that the watch becomes a throw-away when it is time to service. I suspect some key pivots will wear due to lack of jewels and will not be servicable without replacing parts, if available. Thoughts?