George Daniels https://www.xhorloges.cz/best-category/patek-philippe/ is remembered today primarily for his development of the co-axial escapement, for which he received a patent in 1980, but his career as a watchmaker goes https://www.replicauhrenx.de/produkt-Sammlungen/rolex/ back quite a bit further than that – the first timepiece that he made under his own name was a marine chronometer, completed in 1952, https://www.xmontres.cz/Collection/gucci/ which was last seen (as far as I can tell) when it went under the hammer at Sotheby's, in 2017.