PATEK PHILIPPE, ADVANCED RESEARCH, ANNUAL CALENDAR, REF. 5350R, SPIROMAX

PINK GOLD AUTOMATIC ANNUAL CALENDAR WRISTWATCH WITH MOON PHASES, POWER RESERVE INDICATION, SILINVAR SPIROMAX BALANCE SPRING AND SILICON ESCAPE WHEEL, LIMITED EDITION OF 300

Prospective purchasers are advised that several co… Read more

The Advanced Research department at Patek Philippe is responsible for horological improvements and technical innovations. One of their important developments in recent years is the creation of silicium, forged using the ultra-modern DRIE (Deep Reactive Ion Etching) process. Previously, hair springs were crafted from carbon steel, a material that is susceptible to magnetism, oxidation or rust and temperature variations. Modern-day silicium contributes greatly to the precision that Patek Philippe prides itself on, as it has non-magnetic, non-oxidisation properties, reduced mass, is not affected by temperature and has reduced sensitivity as it is three times lighter than conventional springs. Following in the footsteps of this range's previous references, silicium is used in the references 5250, 5350 (Lot 2693) and 5450(Lot 2694). With the most current reference, the three most important components of the escapement - the hairspring, the balance wheel and the anchor or pallet fork - are now in silicium or Silinvar, as Patek Philippe has named it. With the use of the revolutionary Silinvar Spiromax spring, Patek Philippe has ventured one step closer to perfection - the spring is isochronous regardless of temperature, movement orientation or magnetic presence.

MANUFACTURED IN 2007

Details

PATEK PHILIPPE, ADVANCED RESEARCH, ANNUAL CALENDAR, REF. 5350R, SPIROMAX

PINK GOLD AUTOMATIC ANNUAL CALENDAR WRISTWATCH WITH MOON PHASES, POWER RESERVE INDICATION, SILINVAR SPIROMAX BALANCE SPRING AND SILICON ESCAPE WHEEL, LIMITED EDITION OF 300
MANUFACTURED IN 2007

Calibre 324 S IRM QA LU, Geneva Seal hallmarked, 36 jewels, Gyromax balance, Silinvar Spiromax balance spring, silicon escape wheel, brushed silvery grey dial, sweep centre seconds, two subdials for day and month, apertures for date and moon phases, power reserve indicator, two-part case in 18k pink gold, screw down transparent case back with integrated loupe and engraved inscription "Patek Philippe Advanced Research", 18k pink gold PP deployant clasp, case, dial and movement signed
Diameter: 39 mm.

Special Notice

Prospective purchasers are advised that several countries prohibit the importation of property containing materials from endangered species, including but not limited to coral, ivory, tortoiseshell and crocodile. Accordingly, prospective purchasers should familiarize themselves with relevant customs regulations prior to bidding if they intend to import this lot into another country.

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Lot Essay

US$ 38,500-51,000
EUR 28,500-38,000

With Patek Philippe presentation box, Certificate of Origin, product literature and corrector.

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