Important Modern and Vintage Timepieces
LOT 323
JAEGER-LECOULTRE GEOPHYSIC, YELLOW GOLD Jaeger-LeCoultre, “Geophysic, Chronometre”, movement No. 1331481, case No. 747388. Ref. E168. Made in only 30 examples in 1958. Very fine and extremely rare, water-resistant, anti-magnetic to 600 Gauss, indirect center seconds, 18K yellow gold chronometer wristwatch with the original luminous crystal. Accompanied by the Extract from the Archives.
C. Two-body, polished and brushed, lapidated lugs, inclined bezel, screwed down case back. D. Off-white with applied steel baton indexes and Arabic 12 and 6, outer minute/second divisions. Luminous yellow gold epee hands. M. Cal. P478/BWSbr, rhodium-plated, 17 jewels, lateral lever escapement, monometallic balance adjusted to fi ve positions and to temperatures, self-compensating Breguet balance spring, parachute shock absorber, hack mechanism, swan-neck regulator, anti-magnetic dust cap. Dial, case and movement signed. Diam 35 mm. Thickness 10 mm.
Estimate: 8,000 CHF - 12,000 CHF
Estimate: 8,700 USD - 13,000 USD
Estimate: 6,500 EUR - 10,000 EUR
Grading system

C 3 D 3-01 M 2* AAA
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1957 – 1958 was designated International Geophysical Year. This was an international scientifi c effort in which 67 countries took part in making observations and carrying out experiments in various aspects of the earth sciences such as seismology, electromagnetism, glaciology, radioactivity and solar activity. The Jaeger LeCoultre “Geophysic” wristwatch was inspired by the Geophysical Year. To publicise the effort, watches were given to the crew of the the US Nautilus, the fi rst nuclear powered submarine, after its trip under the North Pole in 1958. This watch was made to be anti-magnetic to 600 Gauss to combat the effect of magnetic fi elds that could disturb the timekeeping qualities of the watch. 1038 pieces were made in stainless steel and 30 in gold. After 1962, the Geophysic was fi tted with an automatic movement and renamed the “Geomatic”.
Important Modern and Vintage Timepieces
Sold including buyer's premium:
16,250 CHF