100 Years of Wristwatches

Geneva, Hotel Des Bergues, Nov 19, 2000

LOT 313

Patek Philippe & Cie, Genève, No. 5864, case No. 2699697, Ref. 3587/2, 1970's. Production of this referencestarted in 1970.Interesting center second, water-resistant, large, cushion shaped, 18K yellow gold gentleman's wristwatchwith jump-type date. Accompanied by an 18K yellow gold pierced and heavy integrated bracelet.

CHF 6,000 - 7,000

USD 3,500 - 4,000

Sold: CHF 6,900

C. two-body, solid, polished and brushed, screwed-down case back, hooded lugs. D. satiné blue with appliedtritium-coated yellow gold indexes, aperture for the jump-type date. 'Bâton' tritium-coated yellow gold hands.M. cal. CEH Beta 21, frequency of the quartz oscillator 8192 Hz., reduced to 256 Hz. by the frequency reducer.Dial, case, and movement signed. Dim. 43 x 43 mm.


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Grading System
Case: 4

Fair
Movement: 4*

Fair

Overhaul recommended, at buyer's expense
Dial: 1 - 01

Notes

The firm Patek Philippe, along with other Swiss manufacturers, became part of a new endeavor, the 'Electronic WatchCenter' (CEH), for the study of a quartz wrist caliber. Developed and finished after one year of research, the caliber Beta21 (29 x 24,3 mm.) was ready for production in 1969 and was presented at the Basel Fair in 1970.A similar watch is published in 'Patek Philippe, Genève Wristwatches', by MARTIN HUBER and ALAN BANBERY,Patek Philippe S.A. Edition, 1998 p. 332.