The collection og clocks and watches consists of over 400 home (grandfather's, wall, table, and floor) clocks, as well as about 200 pocket and wrist watches, and a rather comprehensive number of related measuring instruments (sun-dials, sand-glasses and oil-dials) from the 17th c. to contemporary models.

The clocks and watches were collected exclusively on our own territory, although they were mostly manufactured abroad. Most items originate from Central Europe, especially Vienna. Towards the middle of the 18th c., signatures started appearing pointing to the existence of watchmaker's workshops on our territory (Zagreb, Varazdin, Osijek, Rijeka, Karlovac).

All common types of European watchmaking are represented: Floor clocks; grandfather's, portal, mantelpiece, tabernacle, table, wall clocks; framed clocks and clocks inside pictures, as well as clocks typical of given areas, such as the Vienna Telleruhr or Zappler, the Schwarzwald clock, and the like.

As regards pocket watches, we must single out a group of watches manufactured in England in the 18th and 19th c. for the Turkish market. They are characterized by several superimposed casings, while numeric indicators were made in the original Arabic script.

The most numerous and the best quality pocket watches are those from end 18th/first half of the 19th c., manufactured mostly in France and Switzerland. Their casings were decorated by embossing, engraving, pearls, glass paste, enamel, and the use of several different gold nuances.

MUO's permanent collection opened in 1995 includes clocks and watches exhibited for the very first time as a separate whole.