Importantes Montres de Collection
LOT 603
PATEK PHILIPPE, THE RECENTLY DISCOVERED EXCEPTIONAL FULL 24-HOUR REPEATING, QUARTER AND SPECIAL-TYPE FIVE-MINUTE REPEATING 24-HOURS IN ONE REVOLUTION POCKET WATCH Patek Philippe & Cie, Genève, movement No. 97443, case No. 212850. Sold to Monsieur E. E. Hoesch, Villa Barbaia, Mergellina, Naples, on November 27, 1894 for 3750 Swiss Francs. Exceptional, highly important and almost certainly unique, large, full 24-hour, quarter and special-type five-minute repeating, 18K pink gold, keyless pocket watch with perpetual calendar, chronograph, moon phases, lunar calendar and 24-hour dial for 24-hours in one revolution. Accompanied by the original Certificate of Origin and Patek Philippe sales receipt.
C. Four-body, bassine, polished, fi ve-bar hinges, bolt at 23 for locking the chronograph, co-axial button in the crown for the start/stop and return-to-zero of the chronograph. Hinged gold cuvette with setting nibs for the calendar and moon phases on the edge. D. White enamel with radial 24-hour dauphine numerals, red 24, outer minutes track and concentric chronograph divisions with outermost fi ve-second numerals, 15, 30, 45 and 60 in red, subsidiary dials for the date in red concentric with seconds, the days of the week and the months, aperture for the moon phases with lunar calendar on the periphery. Blued steel spade hour and minute hands, gold calendar hands. M. 22’’’, rhodium plated, fausses cotes decoration, 35 jewels, wolf’s tooth winding, counterpoised and calibrated straightline lever escapement, cut bimetallic compensation balance with meantime and temperature adjustment screws, blued steel Breguet balance spring with terminal curve, swan-neck micrometer regulator, repeating on gongs activated by a slide on the band. Case, cuvette and movement signed. Diam. 60 mm.
Estimate: 200,000 CHF - 300,000 CHF
Estimate: 215,000 USD - 325,000 USD
Estimate: 165,000 EUR - 245,000 EUR
Grading system

C 1 D 1-01 M 1*
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The discovery of a previously unknown highly complicated watch by Patek Philippe is always eagerly awaited and incredibly exciting, all the more so when it is an almost certainly unique piece. As is the case with the present exceptional horological Patek Philippe masterwork, no other examples are known to exist. This watch has evidently been carefully preserved and has survived in almost untouched condition for nearly 120 years. This, combined with the very large and heavy 60 mm pink gold case, perfect 24-hour dial and movement with unique repeating mechanism and combination of complications, make it a very special watch indeed. Additionally and quite incredibly, the original Certifi cate of Origin and sales receipt have remained with the watch. This watch is very likely one of the most important newly discovered 19th century Patek Philippe watches of recent years
The movement: Patek Philippe No. 97443 has the following complications:
24-hour train – the hour hand making one full revolution once in 24 hours This requires a completely specially constructed movement with wheels of a higher tooth count so that the hour wheel revolves at half the speed of a standard 12-hour watch. In consequence therefore, the dial is numbered with the hours from 1 – 24 to allow for this.
Full 24-hour repeating The unique feature of watch No. 97443. When the repeating slide is activated, the hours are struck in full from 1 o’clock right up to 24 strikes for a time between midnight and 1am.
Quarter repeating After the hours are struck, if the time is after 15 minutes past the hour, there is a further double strike for each elapsed quarterhour, up to three double strikes after 45 minutes past the hour.
Special-type fi ve-minute repeating Watch No. 97443 has in addition to the full 24-hour and quarter repeating an unusual type of fi ve-minute repeating. The usual manner of striking for a fi ve-minute repeater is a strike for each elapsed hour and then a further single strike for each elapsed fi ve minutes thereafter. However, in the present watch, after the 24-hours and quarters have been struck, up to a further two single strikes are sounded for each fi ve minutes after each quarter and each ten minutes after each quarter.
Chronograph With safety locking bolt on the case and co-axial button in the crown for all three operations. Perpetual calendar Without leap-year indication on the dial. The calendar mechanism of this watch makes an automatic correction for the lengths of the days in the month and leap-years.
Moon phases Indicating the waxing and waning of the moon during its 29½ day cycle. The indication scale for the moon’s age is on the periphery of the aperture
Importantes Montres de Collection
13-11-2011
Sold including buyer's premium:
2,098,500 CHF