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Important Watches

Geneva, Mar 20, 2010

LOT 15

Omega THE WORLD`S MOST ACCURATE WRISTWATCH Omega, ?Constellation, Marine Chronometer, Megaquartz, f2,4 MHz?, case No. 37057952, Ref. ST 198.0074 / 398.0836. Sold on January, 1977. Very fine, rare, and exceptionally accurate, large, rectangular, dead center seconds, water-resistant, stainless steel chronometer wristwatch with date, independent hour adjustment and 14K gold bezel and an integral Omega bracelet with deployant clasp. Accompanied by the original invoice and guarantee, Besancon observatory certificate and a recent Omega box. To be sold without reserve

C. Two-body, polished and brushed, 14K gold bezel secured with four screws, corrector on the band for the seconds, hooded lugs, plate with movement number on inclined side at 6 o`clock, back secured by four screws, sapphire crystal. D. Black, white baton indexes, outer minute/seconds divisions on a raised plateau, date aperture. Tangerine baton hands with luminous inset, white center seconds hand. M. Cal. 1511, 13 jewels, with quartz standardization. Dim. 32.5 x 44.5 mm. Thickness 12.4 mm. Approx. overall length 185 mm.

CHF 3,000 - 5,000

USD 2,800 - 4,500 / EUR 2,000 - 3,500

Sold: CHF 5,040

Grading System
Grade: AA

Very good

Case: 3


Movement: 2

Very good

Dial: 1-01

As new

HANDS Original


The Megaquartz 2400 ? or f2,4 MHz ? is regarded as the world`s most technically advanced wristwatch. It is precise to less than one second per month, which makes it nearly ten times more accurate than an ordinary quartz watch. This precision stems from a specially-designed tiny disc-shaped resonator, which is sealed in a capsule and vibrates to the rate of 2,359,296 times a second. The title of ?world?s most accurate wristwatch? was bestowed on the watch after 63 days of rigorous testing, resulting in a mean variation rate of no more than 2/1000ths of a second per day, or 0.73 seconds per year. Moreover, the watch is equipped with a time zone and seconds adjustment device. This allows for independent hour adjustment, thus not affecting the minutes or seconds. With the seconds corrector in the band the watch can be set to the exact second according to the official time signal. The Megaquartz 2400 was developed in cooperation with the Battelle Institute of Geneva. The first prototype, using caliber 1510, was presented at the 1970 Basel Fair. The watch was launched two years later in its standard version with caliber 1510 and in 1974 as a marine chronometer, with caliber 1511. Caliber 1511 was launched in 1972 and was produced in only 1000 examples. It is so precise that it was awarded the title of ?Marine Chronometer? from the Astronomic and Chronometric Observatory of Neuchâtel.