AISOR (Associazione Italiana Studiosi di Orologeria) is a dedicated association based in Varallo, Italy, committed to the study, preservation, and promotion of both antique and modern horology. With a mission to enhance and disseminate knowledge about timepieces, AISOR offers extensive resources for enthusiasts and professionals alike. The organization focuses on various types of clocks, including pendulum clocks, pocket watches, wristwatches, and monumental tower clocks, providing services such as cataloging, restoration, and conservation.

AISOR also operates the Museo di Orologeria Antica, showcasing a rich collection of historical timepieces, and organizes educational seminars, workshops, and historical research initiatives. Members can participate in exclusive events, contribute to group studies, and enhance their technical skills through specialized training. With a strong commitment to cultural heritage, AISOR promotes the appreciation of horological art and history in Italy and beyond, making it a pivotal institution for clock connoisseurs and scholars.