Regulators with open or closed barrels are particularly interesting for lovers of watch technology. The first regulators were in observatories. Their accuracy was very high. Later, calibration devices that took time were called regulators. The focus here is on the large, luminescent minute hand and
and the large numerals that indicate the minutes, while the hour and second hands are arranged at the top and side respectively. The open mainspring barrel allows an insight into the “inner life” of the movement. The movement was developed in the “ASUM”.