Case of gilt brass, signed: Jan Jansen Bockels Inv and sculpt. Movement of gilt brass and steel, partly blued, signed: Ian Ianssen Bockeltz van Aecken Jan Jansen Bockeltz (d. 1626) Dutch (Haarlem), ca. 1605-1610 The engravings on the dial personify the Four Seasons. The dial also shows the phases and the ages of the moon in its monthly cycle, the day of the month, and the number of days in each month. The sundial inside the cover can be used for setting the watch. The disk for setting the larm is a replacement, as are the hands.
aperture=f2.8 focal length: 60.0 mm exposure 1/60 sec ISO: 1000