Introduction

5205G
- Complications
Self-winding

Recognizable by its three apertures along an arc for displaying the day, the date and the month, the Reference 5205 Annual Calendar pairs its white-gold version with an elegant sunburst dial in two tones of blue shading to black. The case construction is notable for the slightly concave bezel and the delicately pierced strap lugs. A sleek, dynamic and very contemporary style graces this calendar watch requiring adjustment only once a year.


Mechanical self-winding movement. Caliber 324 S QA LU 24H/206. Day, date and month in apertures. Moon phases and 24-hour display. Sweep seconds hand. Dial: Blue sunburst, black gradated, gold applied hour markers. Alligator strap with square scales, hand-stitched, shiny black. Prong buckle. White gold. Sapphire-crystal case back. Water resistant to 30 m. Diameter: 40 mm. Height: 11.36 mm.

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Other versions

Caliber

324 S QA LU 24H
Self-winding

Patek Philippe Caliber 324 S QA LU 24H/206 - Front
Front Back

324 S QA LU 24H
Self-winding

Annual Calendar. Moon phases and 24-hour display. Moon phases. Diameter: 32.6 mm. Height: 5.78 mm. Parts: 356. Bridges: 10. Jewels: 34. Power reserve: Min. 35 hours - max. 45 hours. Central rotor in 21K gold, unidirectional winding. Balance: Gyromax®. Vibrations/hour: 28 800 (4 Hz). Balance spring: Spiromax®. Hallmark: Patek Philippe Seal.

Settings

How to set the moonphase indicator?

fullmoon calendar
fullmoon calendar
fullmoon calendar
fullmoon calendar
fullmoon calendar
fullmoon calendar
fullmoon calendar
A disc, decorated with golden stars and two golden moons against a blue or white background representing the sky, rotates within an aperture. The disc is cut from a wafer of corundum crystal (sapphire).

Gold was condensed onto the disc by means of a vacuum process through a photographic mask to create the shape of the moons and stars.  The aperture is cut at its upper edge in order to represent the lunar cycle.

During the first days of each lunation, the leading edge of a golden moon becomes visible as a crescent on the left of the aperture and appears to wax as it emerges beyond the curved edge of the aperture representing the lunar terminator.

Half way through the lunation, the moon appears full. It then wanes as it disappears behind the terminator on the right of the aperture.

As the moon vanishes, the second moon on the disc is ready to appear on the left.

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