Thematic Auction in Geneva:The Evolut...

Hotel Noga Hilton, Geneva, Nov 16, 2002

LOT 266

Patek Philippe, Genève, circa 1975.Very fine and rare Integrated Electronic T3 Master Clock System with independent minute and seconds comparators, five-piece tower:

CHF 15,000 - 20,000

EUR 10,000 - 13,000

Sold: CHF 18,400

C. 1. Antenna2. Series MI 80, radio controlled clock MI based on radio signal from Prangins Observatory.3. Clock B based on quartz regulator4. Clock C and minute comparator, constantly comparing if all clocks are running the same in terms of minutes and seconds.5. Model L 4031, showing time in four different places of the world.Very powerful Master Clock System capable of controlling an almost unlimited number of slave clocks. Capable of being regulated to 1/1000 of a second. Comes with a factory manual.Signed on every piece.Dim. 92 cm x 42 cm.


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Grading System
Case: 3

Good
Movement: 3*

Good

Overhaul recommended, at buyer's expense
Dial: 3 - 01

Notes

The three clock units separately count the time. Each one is equipped with a quartz-crystal oscillator and electronic dividers. The results are compared with each other in the control unit which is build in the time unit. If one of the clock units show a difference it is automatically switched off.To increase the precision the clock system it is synchronized each second by the time signal from the observatory Prangins, near Genève.The punched tape cassette programmer is able to actuate a pre-set time signal for every minute of a day for seven days.