• Christies auction house James Christie logo

    Sale 1417

    Rare Watches Including Nautilus 40 Part II

    14 November 2016, Geneva

  • Lot 38

    Audemars Piguet. A rare, large and unusual 18K white gold octagonal electroquartz wristwatch with sweep centre seconds, date, black dial and bracelet

    SIGNED AUDEMARS PIGUET, QUARTZ, BETA 21 MODEL, REF. 6001BC, MOVEMENT NO. 153'690, CASE NO. 100'624, MANUFACTURED IN 1975

    Price Realised  

    Estimate

    Audemars Piguet. A rare, large and unusual 18K white gold octagonal electroquartz wristwatch with sweep centre seconds, date, black dial and bracelet
    Signed Audemars Piguet, Quartz, Beta 21 model, Ref. 6001BC, movement no. 153'690, case no. 100'624, manufactured in 1975
    MOVEMENT: quartz, cal. 2510, Beta 21, 13 jewels, frequency of the quartz oscillator 8192 hz, reduced to 256 hz, by the frequency reducer.
    DIAL: black, applied white gold baton indexes, sweep centre seconds, window for date
    CASE: 18K white gold, octagonal, back secured by four screws, 35 mm. width, 42 mm. length
    SIGNED: case, dial, movement
    BRACELET/CLASP: 18K white gold Audemars Piguet link bracelet and deployant clasp, . overall length approximately 180 mm.


    Contact Client Service
    • info@christies.com

    • New York +1 212 636 2000

    • London +44 (0)20 7839 9060

    • Hong Kong +852 2760 1766

    • Shanghai +86 21 6355 1766

    According to the Archives of Audemars Piguet the present watch was sold in 1975.

    This very rare model it is a remarkable example of 1970s style, defined by the the generous case proportions and its very geometrical case design. Moreover, it is powered by the legendary Beta-21 movement, the first quartz movement produced in Switzerland, and an epitome of the 1970s, which were the main theatre of the "quartz revolution".

    The Beta-21 electroquartz movement was developed by a consortium of twenty watch companies at the Swiss Electronic Research Centre or CEH (Centre Electronique Horloger) in Neuchâtel. It was the first quartz movement for wristwatches with analogue display and introduced at the Basel Fair in April 1970. The Beta-21 movement was accurate to 5 seconds per month, which was far superior to any automatic and manual-winding watch at the time.