{"lien_WSTV":"","tax_name":"deprecated","tax_rate":20,"id_manufacturer":"0","id_supplier":"0","id_category_default":"340","id_shop_default":"1","manufacturer_name":false,"supplier_name":false,"name":"Chronographe \u00e0 Quanti\u00e8me Annuel","description":"<p><strong>Patek Philippe Annual Calendar Chronograph\u00a0<\/strong><\/p>\n<div><strong>Complications in stainless steel: a rare fusion at Patek Philippe.\u00a0<\/strong>\u00a0 \u00a0<\/div>\n<div><\/div>\n<div>Patek Philippe's new Ref. 5960\/1A Annual Calendar Chronograph is a wristwatch that emanates the cool sheen of stainless steel. It is one of the manufacture's rare classically elegant wristwatches outside the casually exclusive Nautilus and Aquanaut collections that combine a complicated movement with a stainless steel case. This debut is bound to capture the attention of collectors and brand aficionados. \u00a0 \u00a0\u00a0<\/div>\n<div><\/div>\n<div>When it was launched in 2006, the Patek Philippe Annual Calendar Chronograph in platinum won instant acclaim. It was the manufacture's first self-winding chronograph, manifested a new and unique style with its prominent monocounter and three large calendar apertures, and quickly established itself as one of the most coveted timepieces of the Patek Philippe portfolio. The success story continued with further versions in platinum and rose gold. Now, the letter \"A\" in the model designation 5960\/1A, which stands for <em>acier<\/em> (steel in French), announces a paradigm change. The Annual Calendar\u00a0 Chronograph in stainless steel is not only the latest sibling of its lineage but will also replace all current gold and platinum versions. \u00a0 \u00a0\u00a0<\/div>\n<div><\/div>\n<div>Patek Philippe's stainless steel watches have always ranked among the most desirable timepieces because they were crafted only in small numbers. They were not regularly produced until 1976, when the manufacture introduced the casually elegant Nautilus line. Its memorable slogan: \"One of the world's most expensive watches is made of steel.\" Twenty years later, the attractively stylish Aquanau \u00a0was also endowed with a stainless steel case. With very few exceptions \u2013 such as the ultra-thin Ref. 5950A split-seconds chronograph which has been in the collection since 2010 \u2013 all other Patek Philippe men's wristwatches were systematically cased in gold or platinum. As regards this strict\u00a0 distinction between casual and classic watches, the new Ref. 5960\/1A is another one of these seductive exceptions. \u00a0 \u00a0\u00a0<\/div>\n<div><strong> <\/strong><\/div>\n<div><strong>Masculine elegance\u00a0<\/strong> <strong>\u00a0<\/strong>\u00a0<\/div>\n<div><\/div>\n<div>The new stainless steel case imbues the coveted Annual Calendar Chronograph with authoritative technical finesse that melds classic elegance with masculine sportiness. It emphasizes the active and dynamic nature of the chronograph and underscores its function as a convenient timekeeping instrument of everyday utility. Nonetheless, the new Ref. 5960\/1A has a decidedly elegant nimbus attributable to the balanced, gently rounded case contours and the superb finishing touches that reflect the competence of Patek Philippe's casemaking ateliers. Here, polishing is executed with scientific\u00a0 precision. The artisans are required to accrue several years of experience before being entrusted with the finissage of the manufacture's cases. Because of its hardness, stainless steel challenges the skills of the case specialists and imposes special requirements on their tools. It takes much longer than a\u00a0gold case would to polish a steel case with consecutively finer abrasives until it reflects light with an\u00a0 immaculate sheen. \u00a0 \u00a0\u00a0<\/div>\n<div><\/div>\n<div>The elegance of the case also comes to the fore at the sublime transition to the signature bracelet with its five rows of \u201cdrop\u201d links. It is eminently supple and of filigreed elegance. Developed by Patek Philippe, this bracelet was first introduced in 1997 for the Ref. 5036\/1 Annual Calendar and now celebrates its debut in stainless steel. \u00a0 \u00a0\u00a0<\/div>\n<div><strong> <\/strong><\/div>\n<div><strong>Red accents with a signal effect\u00a0<\/strong> <strong>\u00a0<\/strong>\u00a0<\/div>\n<div><\/div>\n<div>Technical elegance also characterizes the new silvery-gray dial with its striking red accents, interesting bright-dark contrasts, and the dynamic, performance-oriented looks of its explicitly three-dimensional architecture. An uncommon feature in a Patek Philippe watch: the red \"1\" in the date aperture, which kicks off each month with a colorful stimulus while the dates from the 2nd to the 31st days are displayed black on white. It is a genuine premiere for Patek Philippe, as is the combination of an Annual Calendar chronograph with a steel case and the stainless steel \"drop\" links bracelet that underscores the functionality of the Ref. 5960 as a measuring instrument. Thirteen appliques in black\u00a0 oxidized gold produce the expressive 3D effect: the chronograph scale on the periphery of the dial with twelve luminous five-minute markers, the three distinctively contoured frames for the aperture displays of the day, date, and month, the eight pointed-baton hour markers, each with three facets and a recessed sink at the flat end, as well as the 12-hour counter scale at 6 o'clock. Additionally, the dial features two printed concentric chronograph minute counter scales (0 to 30 and 30 to 60 minutes) within the applied hour counter scale, a small day\/night indication at 6 o'clock, and the minus and plus\u00a0 symbols for the power-reserve indicator beneath the date aperture. The redesigned hands of the Ref. 5960\/1A accentuate the dynamic elegance of the watch. The hour and minute hands in black oxidized gold feature three facets to match the hour markers and have a luminescent coating to improve legibility at night.The brass hour-counter hand is black nickel-plated to match the applied counter scale. The large counterbalanced chronograph hand in steel and the small minute-counter hand in brass are bright red as dynamic hints that they are used for measurements in competitive sports. The power-reserve hand in black nickel-plated gold was redesigned as well. It is now somewhat wider and\u00a0 skeletonized.\u00a0 \u00a0\u00a0<\/div>\n<div><strong>Precision conceived from tradition and innovation \u00a0<\/strong>\u00a0<\/div>\n<div><\/div>\n<div>The hands and the calendar displays are powered by the Patek Philippe CH 28-520 IRM QA 24H caliber with flyback chronograph and Annual Calendar as well as power-reserve and day\/night indications. It beats with a frequency of 28,800 semi-oscillations per hour (4 hertz), which assures a constant balance amplitude and thus high rate accuracy. A heavy central rotor in 21K gold winds the watch automatically. \u00a0 \u00a0\u00a0<\/div>\n<div><\/div>\n<div>The movement is a prime example of tradition paired with innovation. It combines the classic column-wheel control concept with a modern vertical disk clutch that eliminates the risk of hand jump or recoi \u00a0when the stopwatch function is activated. The clutch is practically friction-free, so that the chronograph hand can be used as a permanently running seconds hand if desired. \u00a0 \u00a0\u00a0<\/div>\n<div><\/div>\n<div>The patented Spiromax\u00ae balance spring made of Silinvar\u00ae is another innovative feature. Its isochronous oscillation, low mass, antimagnetic properties, and unique geometry assure high rate stability and uniformity. These are ideal prerequisites for the fulfillment of the Patek Philippe Seal\u00a0precision criteria which for mechanical movements of this size tolerate a rate deviation of no more than -3 to +2 seconds per day. \u00a0 \u00a0\u00a0<\/div>\n<div><\/div>\n<div>This rate accuracy also benefits the patented Patek Philippe Annual Calendar, a modular ensemble that is a scant 2.48 mm high despite its 154 parts. Displaying the first day of the month in red, the calendar automatically recognizes months with 30 and 31 days and only needs to be manually corrected by one day on March 1 of each year.\u00a0 \u00a0\u00a0<\/div>\n<div><\/div>\n<div>With its elegance and technical panache, Patek Philippe's new Annual Calendar Chronograph 5960\/1A is destined to become a bestseller that derives fresh charisma from the noblesse and cool luster of stainless steel. As of this year, it replaces all Ref. 5960 Annual Calendar Chronographs in gold and platinum. \u00a0<\/div>","description_short":"","quantity":0,"minimal_quantity":"1","available_now":"","available_later":"","price":38583.333333,"specificPrice":false,"additional_shipping_cost":"0.00","wholesale_price":"0.000000","on_sale":"0","online_only":"0","unity":"","unit_price":0,"unit_price_ratio":"0.000000","ecotax":"0.000000","reference":"5960\/1A","supplier_reference":"","location":"","width":"0.000000","height":"0.000000","depth":"0.000000","weight":"0.000000","ean13":"","upc":"","link_rewrite":"chronographe-a-quantieme-annuel","meta_description":"Patek Philippe Annual Calendar Chronograph\u00a0 Complications in stainless steel: a rare fusion at Patek Philippe.\u00a0\u00a0 \u00a0 Patek Philippe's new Ref. 5960\/1A Annual C...","meta_keywords":"","meta_title":"Watch Patek Philippe Chronographe \u00e0 Quanti\u00e8me Annuel | Complicated Watches 5960\/1A  Steel","quantity_discount":"0","customizable":"0","new":false,"uploadable_files":"0","text_fields":"0","active":"1","redirect_type":"404","id_product_redirected":"0","available_for_order":"0","available_date":"0000-00-00","condition":"new","show_price":"1","indexed":"1","visibility":"both","date_add":"2015-08-03 22:47:21","date_upd":"2021-01-20 13:52:41","tags":false,"base_price":"38583.333333","id_tax_rules_group":"1","id_color_default":0,"advanced_stock_management":"0","out_of_stock":0,"depends_on_stock":false,"isFullyLoaded":true,"cache_is_pack":"0","cache_has_attachments":"1","is_virtual":"0","id_pack_product_attribute":null,"cache_default_attribute":"0","category":"complications","pack_stock_type":"3","id":4962,"id_shop_list":null,"force_id":false,"customization_required":false}

{"Compl\u00e9ment":"Steel","Statut de vente":"N est plus commercialis\u00e9","Date":"2014","Pi\u00e8ce unique":"No","S\u00e9rie limit\u00e9e":"No","Sexe":"Homme","Gaucher":"No","Diam\u00e8tre":"40.5","Epaisseur":"13.55","Types":"Self-winding","Styles":"Sporty, High Horology","Calibre_autre":"CH 25-520 IRM QA 24H","Calibre distinction":"Patek Philippe Seal","Affichage":"Luminescent hands","Affichage_autre":"Hours and minutes chronograph monocounter at 6 o'clock, White gold hands","Complication":"Power Reserve Indicator, Chronograph, Days Indicator, Annual Calendar, 12-Hour Counter, Date, 60-Minute Counter, Months Indicator, Day\/Night Indicator","Mati\u00e8re du bo\u00eetier":"Steel","Particularit\u00e9 du boitier":"Sapphire caseback","Etanch\u00e9it\u00e9":"30 meters","Forme":"Round","Couleur du cadran":"Silvery opal, Black","Index":"Baton-type","Verre":"Sapphire","Mati\u00e8re du bracelet":"Steel","Fermeture du bracelet":"Folding buckle ","Plus de caract\u00e9ristiques":"\tMovement<div>Chronograph with column wheel.\u00a0 Annual Calendar. power-reserve indicator. day\/night indicator. sweep\u00a0 chronograph hand\u00a0 \u00a0 \u00a0\u00a0<\/div><div><br \/><\/div><div>Diameter: 33 mm <br \/>(basic movement 30 mm. calendar module 33 mm)\u00a0 <br \/>Height: 7.68 mm <br \/>(movement 5.20 mm. calendar module 2.48 mm)\u00a0 <br \/>Number of parts: 456 <br \/>(movement 302. calendar module 154)\u00a0\u00a0<\/div><div>Number of jewels: 40 <br \/>(movement 35. calendar module 5)\u00a0\u00a0<\/div><div>Power reserve: <br \/>Min. 45. max. 55 hours\u00a0\u00a0<\/div><div>Winding rotor: Central rotor in 21K gold. unidirectional winding\u00a0\u00a0<\/div><div>Balance: Gyromax\u00ae\u00a0\u00a0<\/div><div>Frequency: <br \/>28.800 semi-oscillations\/h (4 Hz)\u00a0\u00a0<\/div><div>Balance spring: Spiromax\u00ae \u00a0 \u00a0\u00a0<\/div><div><br \/><\/div><div>Winding crown<br \/>Two crown positions:\u00a0\u00a0<\/div><div>\u2013 Pulled out: To set the time\u00a0\u00a0<\/div><div>\u2013 Pushed in: To wind the watch\u00a0 \u00a0\u00a0<\/div><div><br \/><\/div><div>Displays<\/div><div>Center hour and minute hands\u00a0 \u00a0<\/div><div>Sweep chronograph hand\u00a0 \u00a0<\/div><div>Power-reserve indicator at 12 o'clock\u00a0 \u00a0 \u00a0<\/div><div>Monocounter at 6 o'clock \u00a0\u00a0<\/div><div>\u2013 60-minute counter (display on two concentric scales from 0 to 30 and\u00a0 from 30 to 60 minutes)\u00a0\u00a0<\/div><div>\u2013 12-hour counter \u00a0 \u00a0\u00a0<\/div><div><br \/><\/div><div>Aperture displays<br \/><\/div><div>\u2013 Day of week between 10 and 11 o'clock in diamond-polished and black\u00a0 galvanized 18K white-gold frame \u00a0<\/div><div>\u2013\u00a0Date at 12 o'clock in diamond-polished and black galvanized 18K white-gold frame; display of first day of each month with a red '1'. date\u00a0 numerals from '2' to '31' in black \u00a0 <br \/>\u2013 Month between 1 and 2 o'clock in diamond-polished and black\u00a0 galvanized 18K white-gold frame\u00a0\u00a0<\/div><div>\u2013 Day\/night indicator at 6 o'clock\u00a0 \u00a0 \u00a0\u00a0<\/div><div>Pushers<br \/><\/div><div>\u2013 Chronograph start and stop at 2 o'clock\u00a0 \u00a0\u00a0<\/div><div>\u2013 Chronograph reset and flyback function at 4 o'clock\u00a0 \u00a0 \u00a0<\/div><div><br \/><\/div><div>Correctors<\/div><div>\u2013\u00a0Day at 9 o'clock\u00a0 \u00a0\u00a0<\/div><div>\u2013 Date between 9 and 10 o'clock\u00a0 \u00a0\u00a0<\/div><div>\u2013Month at 10 o'clock \u00a0 \u00a0\u00a0<\/div>\u00a0\u00a0\u00a0 <br \/><div>Case \u00a0<\/div><div>Stainless steel. sapphire-crystal glass and caseback<\/div><div>Diameter across crown: 43.20 mm \u00a0 Width between lugs: 21.20 mm\u00a0 \u00a0\u00a0<\/div><div><br \/><\/div><div>Dial<\/div><div>Two-tone style. ebony black and silvery opaline\u00a0\u00a0<\/div><div>Eight applied pointed-baton hour markers in black oxidized white gold. new design with three facets and a sink at the outer end\u00a0 \u00a0<\/div><div>Applied ebony-black oxidized chronograph scale with twelve luminescent five-minute pearls\u00a0<\/div><div>Hour and minute hands in black oxidized 18K white gold. new design with three facets and luminous coating\u00a0 \u00a0<\/div><div>Chronograph hand in steel. counterbalanced. lacquered in red \u00a0 Baton-style power-reserve indicator hand in 18K white gold. skeletonized and black nickel-plated\u00a0 \u00a0\u00a0<\/div><div><br \/><\/div><div>Subsidiary dial with hour-counter scale on ebony-black oxidized applique in 18K white gold \u00a0\u00a0<\/div><div>Baton-style hour-counter hand. counterbalanced. black nickel-plated brass\u00a0\u00a0<\/div><div>Baton-style minute-counter hand. brass. lacquered in red<em>\u00a0<\/em> \u00a0\u00a0<\/div><div><br \/><\/div><div>Bracelet<\/div><div>Stainless steel. with Patek Philippe 'drop' links and stainless steel foldover clasp \u00a0 \u00a0\u00a0<\/div>"}

Chronographe à Quantième Annuel

Reference: 5960/1A

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Brand  :	Patek Philippe
Collection  :	Complicated Watches
Model  :	Chronographe à Quantième Annuel
Reference  :	5960/1A
Complement :	Steel
Year :	2014
Is not commercialised any more

46 300 €Recorded list price in FranceI WANT ITADD TO CART

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• Brand  :	Patek Philippe
  Collection  :	Complicated Watches
  Model  :	Chronographe à Quantième Annuel
  Reference  :	5960/1A
  Complement :	Steel
  Year :	2014
  Is not commercialised any more
  List Price :	46 300 €
  Diameter :	40.5 mm
  Thickness :	13.55 mm
  Styles :	Sporty High Horology
  Types :	Self-winding
  Calibre :	CH 25-520 IRM QA 24H
  Calibre distinction :	Patek Philippe Seal
  Complication :	Power Reserve Indicator Chronograph Days Indicator Annual Calendar 12-Hour Counter Date 60-Minute Counter Months Indicator Day/Night Indicator
  Case material :	Steel
  Case peculiarity :	Sapphire caseback
  Shape :	Round
  Water-resistance :	30 meters
  Dial color :	Silvery opal Black
  Display :	Luminescent hands Hours and minutes chronograph monocounter at 6 o'clock White gold hands
  Indexes :	Baton-type
  Glass :	Sapphire
  Strap material :	Steel
  Strap clasp :	Folding buckle
  + More characteristics :	Movement Chronograph with column wheel.  Annual Calendar. power-reserve indicator. day/night indicator. sweep  chronograph hand       Diameter: 33 mm (basic movement 30 mm. calendar module 33 mm)  Height: 7.68 mm (movement 5.20 mm. calendar module 2.48 mm)  Number of parts: 456 (movement 302. calendar module 154)   Number of jewels: 40 (movement 35. calendar module 5)   Power reserve: Min. 45. max. 55 hours   Winding rotor: Central rotor in 21K gold. unidirectional winding   Balance: Gyromax®   Frequency: 28.800 semi-oscillations/h (4 Hz)   Balance spring: Spiromax®      Winding crown Two crown positions:   – Pulled out: To set the time   – Pushed in: To wind the watch     Displays Center hour and minute hands    Sweep chronograph hand    Power-reserve indicator at 12 o'clock      Monocounter at 6 o'clock    – 60-minute counter (display on two concentric scales from 0 to 30 and  from 30 to 60 minutes)   – 12-hour counter      Aperture displays – Day of week between 10 and 11 o'clock in diamond-polished and black  galvanized 18K white-gold frame   – Date at 12 o'clock in diamond-polished and black galvanized 18K white-gold frame; display of first day of each month with a red '1'. date  numerals from '2' to '31' in black   – Month between 1 and 2 o'clock in diamond-polished and black  galvanized 18K white-gold frame   – Day/night indicator at 6 o'clock       Pushers – Chronograph start and stop at 2 o'clock     – Chronograph reset and flyback function at 4 o'clock      Correctors – Day at 9 o'clock     – Date between 9 and 10 o'clock     –Month at 10 o'clock          Case   Stainless steel. sapphire-crystal glass and caseback Diameter across crown: 43.20 mm   Width between lugs: 21.20 mm     Dial Two-tone style. ebony black and silvery opaline   Eight applied pointed-baton hour markers in black oxidized white gold. new design with three facets and a sink at the outer end    Applied ebony-black oxidized chronograph scale with twelve luminescent five-minute pearls  Hour and minute hands in black oxidized 18K white gold. new design with three facets and luminous coating    Chronograph hand in steel. counterbalanced. lacquered in red   Baton-style power-reserve indicator hand in 18K white gold. skeletonized and black nickel-plated     Subsidiary dial with hour-counter scale on ebony-black oxidized applique in 18K white gold    Baton-style hour-counter hand. counterbalanced. black nickel-plated brass   Baton-style minute-counter hand. brass. lacquered in red     Bracelet Stainless steel. with Patek Philippe 'drop' links and stainless steel foldover clasp

DESCRIPTION

• Patek Philippe Annual Calendar Chronograph 

  Complications in stainless steel: a rare fusion at Patek Philippe.    
  Patek Philippe's new Ref. 5960/1A Annual Calendar Chronograph is a wristwatch that emanates the cool sheen of stainless steel. It is one of the manufacture's rare classically elegant wristwatches outside the casually exclusive Nautilus and Aquanaut collections that combine a complicated movement with a stainless steel case. This debut is bound to capture the attention of collectors and brand aficionados.     
  When it was launched in 2006, the Patek Philippe Annual Calendar Chronograph in platinum won instant acclaim. It was the manufacture's first self-winding chronograph, manifested a new and unique style with its prominent monocounter and three large calendar apertures, and quickly established itself as one of the most coveted timepieces of the Patek Philippe portfolio. The success story continued with further versions in platinum and rose gold. Now, the letter "A" in the model designation 5960/1A, which stands for acier (steel in French), announces a paradigm change. The Annual Calendar  Chronograph in stainless steel is not only the latest sibling of its lineage but will also replace all current gold and platinum versions.     
  Patek Philippe's stainless steel watches have always ranked among the most desirable timepieces because they were crafted only in small numbers. They were not regularly produced until 1976, when the manufacture introduced the casually elegant Nautilus line. Its memorable slogan: "One of the world's most expensive watches is made of steel." Twenty years later, the attractively stylish Aquanau  was also endowed with a stainless steel case. With very few exceptions – such as the ultra-thin Ref. 5950A split-seconds chronograph which has been in the collection since 2010 – all other Patek Philippe men's wristwatches were systematically cased in gold or platinum. As regards this strict  distinction between casual and classic watches, the new Ref. 5960/1A is another one of these seductive exceptions.     
  Masculine elegance    
  The new stainless steel case imbues the coveted Annual Calendar Chronograph with authoritative technical finesse that melds classic elegance with masculine sportiness. It emphasizes the active and dynamic nature of the chronograph and underscores its function as a convenient timekeeping instrument of everyday utility. Nonetheless, the new Ref. 5960/1A has a decidedly elegant nimbus attributable to the balanced, gently rounded case contours and the superb finishing touches that reflect the competence of Patek Philippe's casemaking ateliers. Here, polishing is executed with scientific  precision. The artisans are required to accrue several years of experience before being entrusted with the finissage of the manufacture's cases. Because of its hardness, stainless steel challenges the skills of the case specialists and imposes special requirements on their tools. It takes much longer than a gold case would to polish a steel case with consecutively finer abrasives until it reflects light with an  immaculate sheen.     
  The elegance of the case also comes to the fore at the sublime transition to the signature bracelet with its five rows of “drop” links. It is eminently supple and of filigreed elegance. Developed by Patek Philippe, this bracelet was first introduced in 1997 for the Ref. 5036/1 Annual Calendar and now celebrates its debut in stainless steel.     
  Red accents with a signal effect    
  Technical elegance also characterizes the new silvery-gray dial with its striking red accents, interesting bright-dark contrasts, and the dynamic, performance-oriented looks of its explicitly three-dimensional architecture. An uncommon feature in a Patek Philippe watch: the red "1" in the date aperture, which kicks off each month with a colorful stimulus while the dates from the 2nd to the 31st days are displayed black on white. It is a genuine premiere for Patek Philippe, as is the combination of an Annual Calendar chronograph with a steel case and the stainless steel "drop" links bracelet that underscores the functionality of the Ref. 5960 as a measuring instrument. Thirteen appliques in black  oxidized gold produce the expressive 3D effect: the chronograph scale on the periphery of the dial with twelve luminous five-minute markers, the three distinctively contoured frames for the aperture displays of the day, date, and month, the eight pointed-baton hour markers, each with three facets and a recessed sink at the flat end, as well as the 12-hour counter scale at 6 o'clock. Additionally, the dial features two printed concentric chronograph minute counter scales (0 to 30 and 30 to 60 minutes) within the applied hour counter scale, a small day/night indication at 6 o'clock, and the minus and plus  symbols for the power-reserve indicator beneath the date aperture. The redesigned hands of the Ref. 5960/1A accentuate the dynamic elegance of the watch. The hour and minute hands in black oxidized gold feature three facets to match the hour markers and have a luminescent coating to improve legibility at night.The brass hour-counter hand is black nickel-plated to match the applied counter scale. The large counterbalanced chronograph hand in steel and the small minute-counter hand in brass are bright red as dynamic hints that they are used for measurements in competitive sports. The power-reserve hand in black nickel-plated gold was redesigned as well. It is now somewhat wider and  skeletonized.    
  Precision conceived from tradition and innovation   
  The hands and the calendar displays are powered by the Patek Philippe CH 28-520 IRM QA 24H caliber with flyback chronograph and Annual Calendar as well as power-reserve and day/night indications. It beats with a frequency of 28,800 semi-oscillations per hour (4 hertz), which assures a constant balance amplitude and thus high rate accuracy. A heavy central rotor in 21K gold winds the watch automatically.     
  The movement is a prime example of tradition paired with innovation. It combines the classic column-wheel control concept with a modern vertical disk clutch that eliminates the risk of hand jump or recoi  when the stopwatch function is activated. The clutch is practically friction-free, so that the chronograph hand can be used as a permanently running seconds hand if desired.     
  The patented Spiromax® balance spring made of Silinvar® is another innovative feature. Its isochronous oscillation, low mass, antimagnetic properties, and unique geometry assure high rate stability and uniformity. These are ideal prerequisites for the fulfillment of the Patek Philippe Seal precision criteria which for mechanical movements of this size tolerate a rate deviation of no more than -3 to +2 seconds per day.     
  This rate accuracy also benefits the patented Patek Philippe Annual Calendar, a modular ensemble that is a scant 2.48 mm high despite its 154 parts. Displaying the first day of the month in red, the calendar automatically recognizes months with 30 and 31 days and only needs to be manually corrected by one day on March 1 of each year.    
  With its elegance and technical panache, Patek Philippe's new Annual Calendar Chronograph 5960/1A is destined to become a bestseller that derives fresh charisma from the noblesse and cool luster of stainless steel. As of this year, it replaces all Ref. 5960 Annual Calendar Chronographs in gold and platinum.