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

Details
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.

Lot Essay

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.

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