Important Modern & Vintage Timepieces

Hong Kong, May 10, 2020

LOT 261

IWC - Ref. 3770, large, self-winding, minute-repeater, chronograph, minute and hour recorders, secular millesimal perpetual calendar, moon; limited edition of 50 pieces; platinum

HKD 468,000 - 630,000

USD 60,000 - 80,000 / EUR 55,000 - 73,000 / CHF 60,000 - 80,000

Sold: HKD 650,000

Platinum, self-winding, round-shaped, large gentleman’s wristwatch, case-back screwed by six screws, screwed winding-crown, inclined bezel, white dial with subsidiary seconds at 9 and ten horological complications: • Minute-repeater on two steel gongs (activated by the slide at 9 o’clock) • 1/8 second chronograph (activated by the two rectangular push-pieces) • Instantaneous 30-minute recorder (subsidiary dial at 12 o’clock) • 12-hour recorder (subsidiary dial at 6 o’clock) • Half-instantaneous secular perpetual calendar • Date of the month (subsidiary dial at 3 o’clock) • Day of the week (subsidiary dial at 9 o’clock; indications given in German) • Month of the year (subsidiary dial at 6 o’clock; indications given in German) • Millesimal of the year (aperture at 7:30; century, decade and year) • Phases of the moon (aperture at 12 o’clock).

Grading System
Case: 1

As new

Movement: 1 *
Dial: 1-01

As new

HANDS Original

Brand International Watch Co., Schaffhausen / Schaffhouse

Model “Grande Complication”

Reference 3770

Year Circa 1991

Case No. 2 552 044

Material platinum

Bracelet black crocodile IWC strap

Buckle platinum IWC buckle

Diameter 42.3 mm.

Caliber 79091

Signature dial, case and movement

Accessories original fitted box and outer box, certificate of origin, instruction booklet, the book by Fritz, Manfred, “Grande Complication”, Edition Stemmle, Schaffhausen. Zürich, Frankfurt / M, Düsseldorf, 1991 (240 pp.; German version), service paper (invoiced in 2019)


The certificate mentioned that this watch was sold on July 17, 1992.

IWC, Ref. 3770

After seven years and over 50 000 hours in the making, the IWC “Grande Complication” model was completed and presented in the spring of 1990. Kurt Klaus, the head watchmaker and technical designer of the brand strived to create the first wristwatch-sized “Grand Complication” with unprecedented number of complications. With over 659 individual parts, the watch houses an impressive number of complications: perpetual calendar calibrated for 500 years, precise moon-phase indicator, chronograph up to twelve hours, and a crystal-clear chiming minute-repeater. Nevertheless, Klaus wanted to keep the watch more “user-friendly” by choosing an automatic winding method fit for daily use.


International Watch Co., Schaffhausen

In the 1870’s, American-born Florentine Ariosto Jones, who had been appointed director of the E. Howard & Co. watchmaking factory in Boston at the early age of 27, decided to manufacture high-quality movements and watch parts for the American market using American technology and skilled labour from Switzerland, where wages were comparatively low. However, the skilled workers in the Geneva region and in the remote valleys of the Jura mountains resisted the plans of a man they considered an intruder and it was not until Jones teamed up with Johann Heinrich Moser from Schaffhausen that his plan could be realized. Moser had built a hydrostation in Schaffhausen, powered by water from the Rhine, which generated low-cost energy. In 1868, Jones settled on the banks of the Rhine, creating the International Watch Company. Schaffhausen had long been a watchmaking town, with a clockmaker’s guild existing there since 1583. The town was also home to the famous Habrecht family of clockmakers, who built the impressive astronomical clock for the Strasburg cathedral. However, Jones’ arrival marked a new era in time measurement, for he was not only an entrepreneur but a talented watchmaker. The first pocket watches produced in Schaffhausen with the Jones calibre had a wealth of advanced technical features. A year after its foundation, the “American” watch factory passed into Swiss hands, but its philosophy – “Probus Scafusia” good, solid craftsmanship from Schaffhausen – has remained unchanged. By the late 1930’s, IWC’s reputation was so good that its watches were considered “the poor man’s Patek Philippe”. In recent years, IWC enlarged their horological scope by a close cooperation not only with Jaeger LeCoultre in Le Sentier (Vallée de Joux), but also with A. Lange & Söhne in Glashütte (Germany).