The pendant tube is slightly rusted onto the winding stem, and they come off together. The washer shouldn’t be there, and the gasket isn’t original either. Somebody tried to make this watch a bit waterproof, but this isn’t going to work. It’s either a new crown and pendant tube, or nothing. I can’t get hold of a pendant tube, so I will have to leave it as it is. Most vintage watches aren’t water resistant, and I don’t let my Constellation anywhere near water, as the crown is original and the pendant tube has grooves as well.
Nice beat rate and amplitude, and the beat error is fine for a movement where the beat error is corrected on the collet. The movement is so small, that I wouldn’t be able to make the beat error better than this.
With a new crystal, the watch looks very nice indeed. Poor Huw had to wait a good 4 weeks, but I hope it was worth it!