Patek Philippe 5205R-010 Annual Calendar Black Dial (27053)

27053 Patek Philippe 5205 R Annual Calendar, 5205R-010, 5205R010, annual calendar, 18K rose gold on a strap with an 18K rose gold buckle, automatic movement, annual calendar, day, date, month, moonphase and 24-hour dial, centered sweep seconds hand, black glossy dial with applied stick markers, 48 hour power reserve, sapphire crystal, display back, water resistant to 30 meters, diameter: 40mm, thickness: 13.55mm, like new with original box and papers dated October 2015.


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More about Patek Philippe 5205R-010 Annual Calendar Black Dial

This is an 18K rose gold Patek Philippe Annual Calendar 5205R-010. The dial is black and glossy with applied rose gold stick-baton hour markers, gold dauphine hands (including a center sweep seconds hand), and engraved dot minutes/seconds on an outer track. The two-body case and rounded bezel are polished, and the moon-phase and 24-hour sub-dial is at 6 o'clock. The annual calendar has three apertures, including one for the day at 10 o'clock, a window for the month at 2 o'clock, and the date at 12. It's water resistant to 30 meters, with a 48-hour power reserve and a sapphire crystal display back. The alligator leather strap has correctors and a matching 18K rose gold tang buckle. The case, dial, and movement are all signed.

The automatic calibre 324 S QA LU 24H/206 movement is rhodium-plated, with fausses cotes embellishment, and the stamp of the Seal of Geneva quality mark. It's constructed with 34 jewels and 364 parts, a straight-line lever escapement, a shock absorber mechanism, and a self-compensating free-sprung Spiromax flat balance spring. It has the patented Patek Philippe Gyromax balance that compensates for cold, heat, isochronism, and 5 positions.

Patek introduced moon phase displays in 1927, and in 1996 they received a patent for their Annual Calendar mechanism, necessitating the annual calendar watch only to be adjusted manually once every 365 days. This model is still in current production; this example was made in 2015.