The reference 4858 was launched in 1998 and produced until 2006, and was the first moon phases wristwatch for ladies by Patek Philippe. Due to the noble and elegant design of the watch, the 4858 quickly became a popular ladies watch, it was often out of stock when it was first launched. Later, the emergence of the 4936 and 4937 series, and the preference for larger watches in diameters, the trend intensified. It was only in 2006 that Patek Philippe hurriedly discontinued the 4858 series, which had gradually been neglected, and replaced with the 4958 series with a diameter increased by 2 mm.