Given your all's encouragement to keep posting pocket watches, here's another interesting one "from the archives." This is actually a really scarce(although not super valuable) watch that came together in pieces.
For a little bit of back story, Patek invented the stem winding mechanism in the 1850s, I believe, although it was slow catching on and many people were initially mistrustful of it.
Stem winding didn't come to American manufacturing until the years after the Civil War-there's some debate about who came to market with it first, but depending on who you ask it was either the E. Howard Watch Company or the United States Watch Co. of Marion, NJ. Both used very different winding and setting mechanisms. The Marion mechanism was "push" setting-meaning that the setting mechanism was engaged by pushing a button or tab. The Marion mechanism was a bit "touchy" and the company was having serious financial troubles-many of their watches went out the door with incomplete stemwind mechanisms(or at least plates milled for them) as the factory couldn't get them to work and was just trying to stay solvent by moving watches. The Howard mechanism was pendant set(meaning that it worked by "clicking" the stem out-just as nearly all modern watches work), but pricey. Waltham came out with their own stemwind mechanism in 1868. The already high end 16 size 1860 model was modified with a stem winding mechanism and a unique pull-out set lever. This was known as the 1868 model.
There was still a market for a low-end stemwind watch, though, and Waltham answered the call by fitting one to their venerable 1857 model. The most common stemwind 1857 models are stemwind and lever set. There were a few made, however, that were stemwind but had no
setting mechanism. Thus, they were set with a key-just as would be a traditional keywind watch. Another quirk of these watches-and also a reflection of their market position-is that they have no clutch, so it is impossible to turn the stem backwards as one normally could. This is always quite jarring to me, as I'm in the habit of "rolling" the crown back and forth between my thumb and forefinger.
In any case, the watch below is an early(ish) example of a stemwind, keyset 1857 model Waltham Watch Co. grade. The WWCo grade was always 15j, and was adjusted to temperature(with the aide of the composition balance-not present on some lower grade 57s). This was the second highest grade of regular production 1857 models.
This watch came to me in pieces. I was working at the registration desk at the Lexington, KY regional a few years ago and a friend slid an envelope across the table to me and said "$150 if you want it." I opened the envelope, and pulled out the near perfect, but uncased WWCo Stemwind/Keyset movement below. I bought it from him(a lot of folks looked at it, as I had it out on the registration desk, but didn't even realize what it was). The only real issue is the hands, which are mismatched and neither of which is correct. The gilding on the movement is absolutely flawless.
Cases for these movements are rare as hen's teeth. They fit in a standard 18 size case, but at least on a hunting case require the rare complication of a winding stem and a hinged bezel. Hinged bezels are typical on keywind hunting cases to make setting the time easier, but almost never used on stemwind cases due to the additional complexity and bulk. In fact, the only real reason for having one is in a case where you still need to access the setting square on the stem.
As luck would happen, about 6 months after buying the movement, someone posted on the NAWCC message board with an empty case asking what it would fit. It was a llghtweight 18 size coin silver stemwind hunting case with a hinged bezel and no set lever slot. The owner was asking about cutting a lever slot so that he could put another watch in it. Fortunately, I was able to jump in, help him realize how rare the case was, and make a deal with him to buy the case before he did something to ruin it.
So, I now have a complete watch. Unfortunately, someone did get to it with the TarnX before I could buy it