Dubois Dépraz 9000

The Dubois Dépraz 9000 is a round module measuring 26.2 mm in diameter and 5.2 mm in height. It adds day, month, and moon phase indicators via apertures alongside a pointer date complication to a base movement. The module component itself is 1.6 mm thick. This perpetual calendar module is produced by Dubois Dépraz, a Swiss manufacturer specializing in add-on complications for ébauches.