6300G

The perpetual calendar complication displays the day, date and month, but it requires less adjustment than an annual calendar. This complication knows the number of days in each month but it also knows the year so that it will automatically adjust for leap year. The next time a perpetual calendar will have to be adjusted is in the year 2100.

The date is a small window on the dial which indicates the day of the month (between 1 and 31).

Watches featuring a moonphase complication display new moons, first quarters, full moons and last quarters.

Watches featuring a Grande Sonnerie strike the hours and quarters in passing and repeats the hour at each quarter.

Watches featuring a « petite sonnerie » indicate hours and quarters without repeating hours at each quarter like « grande sonnerie » watches.

The power reserve indicator tells you the time the watch will continue to function. It can either be seen on hand winding or automatic watches.

Watches featuring dual time system indicate local time in different world cities. They are very appreciated by travelers.