Albert H. Potter was perhaps the outstanding American watchmaker. I recently acquired his watch #595, made after he moved to Geneva. I am posting photos of it here because Potter was an American, but the moderator may conclude that it should be moved to the European Pocket Watch forum. There is quite a bit of information about Potter in other postings on this message board. I won't repeat what they say except to note that his US production is quite rare, perhaps 35 watches. His Geneva production was greater, but even they are quite uncommon. His watches were very expensive, reportedly selling for at least 10 times a basic Vacheron & Constantin. Because of their expense, Potter ultimately failed as a watchmaker and quit that business in 1895. My watch dates to the early 1890s. It has an 1892 inscription: Augustus Cummings/From Florence Eloise Hood/ Dec. 14th, 1892. Cummings married Hood on that date, so this watch was her wedding present to him. Cummings was a civil engineer, born in Norfolk England, who ended up in Pittsburgh, Pennsylvania, where he had a very successful business, among other things inventing the "Cummings System" of reinforced concrete. The watch is in excellent condition, save for a hairline in the seconds dial. Since the watch did not need servicing when I purchased it, I will defer soaking the dial until the watch needs servicing. Soaking should make the hairline nearly invisible. The very unique movement is covered by a glass cuvette. I elected not to remove it before taking the movement photos below.