TABLE OF CONTENTS General views 1.1. Basic movement 1.2. Perpetual Calendar mechanism Description of watch 2.1. General comments 2.2. Technical details of movement 2.3. Indications provided by the watch 2.4. Functions and indications illustrated by diagram Basic functions 3.1. Hand-setting 3.2.
2. DESCRIPTION OF WATCH 2.1. General comments The Audemars Piguet Perpetual Calendar is an exceptio- nal timekeeper. The Perpetual Calendar mechanism associated with it indicates date, day, month, phases of the moon. Moreover, it is programmed mechanically to take auto- matic account of the occurrence of a leap year.
2.3. Indications provided by the watch Hours - minutes - date - day - month - phases of the moon. 2.4 Functions and indications illustrated by diagram date corrector day corrector moon phase corrector hour hand minute hand month indicator hand day indicator hand date indicator hand moon phase indicator sector...
The indications will be precise from the start of the follo- wing day unless there is another reset. 3.3. Winding up the watch If the watch stops, a few turns of the crown (in posi- tion A) will be sufficient to restart it, then the movement of the watch on the wrist will ensure it rewinds.
4.2.2. Correction procedure Correct and carry out steps in following order : The date, (simultaneously with the day) and - at the end of the month - the month, with the corrector located at 10 o'clock position (1). The day, with the corrector located at 8 o'clock (2). Phases of the moon, with the corrector located at 4 o'clock position (3).
5. SOME NOTES ON PHYSICAL TIME 5.1. Phases of the moon A lunation lasts for 29 days, 12 hours, 44 minutes, 2.8 sec. It is shown on the dial of your watch (9). The attached tables give information on the dates of the different phases.
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