Important Watches Wristwatches, and C...
Geneva, Hotel Des Bergues, Apr 02, 2000
LOT 120
International Watch Co., Schaffhausen, Da Vinci, Quartz Electronic, circa 1970.Fine, center-seconds, water-resistant, hexagonal,18K yellow gold gentleman?s quartz wristwatch with date, and 18K yellow gold integrated bracelet.
CHF 5,000 - 6,000
C. Two-body, solid, brushed, lapidated bezel. D. satiné gold with applied gold indexes, aperture for the date. ?Bâton? gold and black hands. M. cal. CEH Beta 21, frequency of the quartz oscillator 8192 Hz., reduced to 256 Hz. by the frequency reducer, sweep seconds-hand.Signed on the dial, numbered on the case.Dim. 38 x 35 mm.
| Grading System | |
|---|---|
Grade: AA |
Very good |
Case: 4 |
Fair |
Movement: * 4 |
|
Dial: 3 - 01 |
Notes
The firms IWC, Patek Philippe, Piaget, Rolex with other Swiss manufacturers became part of a new company ?Electronic Watch Centre? (CEH) to jointly study a quartz wrist calibre. Developed and finished after one year of research, the calibre Beta 21 (29 x 24,3 mm) was ready for production in 1969 and was presented at the Basel Fair in 1970.