- Walnut case with ebony trim
- Runs 31 days plus on a winding
- Day of the month ribbon
30-Day Vienna regulator with calendar ribbon. This was an innovative method of displaying the date without the need for any additional mechanics added to the movement. A simple pointer measures the weight drop per day and points to the day of the month. Just be sure to always wind your clock on the first of the month. This clock ships from Michigan. We ship worldwide.