Patek Philippe Geneve Mode D'emploi page 4

The "cathedral" gongs
To optimize the acoustic quality of a minute-
repeater wristwatch, the "cathedral" gongs
are shaped to encircle the movement not just
once, but nearly twice. This makes them almost
twice as long as conventional gongs. The result:
greater vibrational stability and better acoustic
characteristics.
Displays, functions, and correctors
D A
9
6 5 4 C
NOTE ON CORRECTING PERPETUAL CALENDAR DISPLAYS (PUSH PIECE A) AND MOON PHASE DISPLAY (PUSH PIECE C):
• PLEASE PERFORM ALL SETTINGS AND ADJUSTMENTS WITH THE CORRECTION STYLUS THAT WAS DELIVERED WITH YOUR
WATCH. THE USE OF ANY OTHER TOOL COULD DAMAGE YOUR WATCH.
• DATE AND MOON PHASE CORRECTIONS MUST BE MADE AT 7 AM. THIS IS THE ONLY WAY TO ASSURE THAT THE DATE CHANGE
MECHANISMS ARE NOT ENGAGED AND CANNOT BE DAMAGED.
• THE SETTING SEQUENCE DESCRIBED HEREAFTER MUST BE STRICTLY OBSERVED.
B
1 2
8
7
3
The perpetual calendar
The perpetual calendar indicates the date, the day
of the week, the month, and the leap-year cycle,
automatically taking into account months with
28, 29, 30, and 31 days. It switches directly from
September 30 to October 1 or from February 28
to March 1. In leap years, it indicates February 29
before switching to March 1.
If the watch is worn regularly or kept in a winder,
the perpetual calendar mechanism will require
no manual correction until February 28, 2100, a
secular year in which, as an exception, February
29 is skipped.
DISPLAYS AND FUNCTIONS
1- YEAR (4 = LEAP YEAR)
2- MONTH
3- MOON PHASE
4- CALENDAR (DATE)
5- 24-HOUR DIAL
6- DAY OF THE WEEK
7- MANUAL WINDING
8- SETTING THE TIME
9- SLIDE FOR ACTUATING THE MINUTE REPEATER
CORRECTORS
A-
CALENDAR CORRECTION PUSH PIECES: DATE (4), MONTH (2), YEAR (1)
B-
CORRECTION PUSH PIECES FOR THE MONTH (2) AND THE YEAR (1)
C-
MOON-PHASE CORRECTION PUSH PIECE (3)
D-
DAY-OF-WEEK CORRECTION PUSH PIECE (6)