3587 Beta Quartz yellow gold
Lot 115
Patek Philippe. A rare and unusual 18K gold early quartz bracelet wristwatch with center seconds and dateRef:3587/2, Case no. 2699672, Movement no. 5757, 1970's
US$ 25,000 - 30,000
£15,000 - 18,000

Lot Details
Patek Philippe. A rare and unusual 18K gold early quartz bracelet wristwatch with center seconds and date
Ref:3587/2, Case no. 2699672, Movement no. 5757, 1970's
13-jewel Cal. CEH B21 movement with quartz oscillator, two tone gilt cushion form dial with minute ring enclosing shaped gold baton numerals, date aperture at 3 o'clock, gold hands and black sweep hand, within a substantial brushed cushion form case with polished bezel, completed by a textured openwork bracelet of interlocking links, folding clasp, case, dial and movement signed. 42.5mm

Footnotes

  • This Patek Philippe is fitted with a Beta 21 movement, the first quartz movement to be produced and sold. The Beta 21 was actually the fruit of a collaboration lasting from 1962 through 1969 among 20 leading Swiss watch brands including Patek Philippe and Rolex. The resulting movement was introduced at the 1970 Basel Fair, and was put into watches by various brands.

    The Beta 21 is an electronic calibre, utilizing a quartz crystal with a natural oscillation rate of 8192 Hz which Patek reduced to 256 Hz by means of their proprietary frequency reducer. As a result, the seconds hand sweeps continuously rather than with the ticking of usual quartz movements. Because of its high cost, the Beta 21 was soon discontinued and very few watches were produced.
Auction information

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