Pocket watch: one of the earliest astronomical pocket watches with perpetual calendar, Meuron & Comp., ca. 1790: Ca. Ø56mm, ca. 132g, gilt, signed verge movement, astronomical verge watch with 7 complications and seconds, one of the earliest watches with perpetual calendar, also with moon phase, moon age and indication of the length of the month in days, gilt hands, enamel dial with old hairlines, ticking, cleaning necessary.