Automatic Tri-retrograde islamic lunar and gregorian dual calendar with moon phase

This complicated wristwatch based on an automatic Swiss made movement is completed by a complication module made by Agenhor in Geneva housed in a steel watchcase. 

To integrate the Islamic calendar together with the conventional Gregorain calendar on a mechanical wristwatch is a unique feature worldwide. The Etoile Dual-calendar wristwatch is housed in an octangular watchcase measuring 42mm indication hours and minutes by two large hands in the center of the dial. 

The date of the Gregorian calendar is indicated by a retrograde-hand starting from the left at 10 O'clock and ending at the right at 2 O'clock with the 31st day of the month. The date of the 30 days of the Islamic calendar are indicated at 6 O'clock with Arabic numerals. 

At 4 O'clock the retrograde hand starts indicating the first month of the Hijri calendar and ends at the left side of the dial at 8 O'clock with the last month.