Dubois Dépraz DD 4500

The DD 4500 is a chronograph module featuring grande date (big date) complication using two date discs displayed at 12:00. The chronograph includes 60-second, 30-minute, and 12-hour counters with quickset date. Used extensively by Breitling and DuBois et fils. The module has a balance stop (hacking) function. Available in different configurations with or without date features.