A personal project that I recently made some good progress on so I thought I'd share. I picked up this movement about 18 months ago. It was in a sorry looking state but I was told the detent was good - as it would prove to be as I didn't really want to have to make one for it - but that the passing spring was gone. The other thing going for it was the mint dial, meaning it could be made into a really good looking watch at some point in the future. On stripping it down I found a nice pair of signatures on the back of the dial. I started off some while back with cleaning up the balance components, not to make them look as new but at least presentable while still showing their age. The larger tasks required were to make a new passing spring and also a new balance staff as the top pivot of the original was gone. I finally got around to doing those a couple of weeks ago. I didn't take any pictures of the spring (or the detent) while it was out of the watch but you can just see it poking out here. It is strange that the original was still partially there but had been bent broken away. It would have been quite a challenge to do this without damaging the detent itself! And then the balance staff, copying the original which lacked oil sinks by either pivot. Clearly there are still some 'cosmetically challenged' parts but it was great to have it finally ticking last weekend. Primarily I need to decide what to do about the balance spring which has a couple of badly rusted areas and may well be causing it to run quite slow. I think I am going to challenge myself to make a new spring, either using a donor flat spiral steel spring which I will re-temper on a cylindrical former, or perhaps make one from gold wire which would also be period appropriate. Some experimentation will be needed but at least that way I could keep the original intact. Talking of which, I'd be interested to hear anyone's views on the date of this. The Barwise serial number would fall in the mid-late 1790s for their watches according to references I've found but this is clearly not that early. 'Early' features to my mind are the screwed on comma shaped winding tube, the relatively thin top plate (which I realise you can't see), the style of the spring on the set up ratchet and the minutes indication on the dial. The detent is a Pennington dovetail but these existed from around 1800. A later feature is the screws rather than pins for the pillars, though movements did exist with these back into the 18th Century. My feeling is 1805-1810 but welcome any comments. Seth.