Important Modern & Vintage Timepieces

Geneva, Nov 10, 2013

LOT 345

PATEK PHILIPPE MASTER CLOCK SYSTEM Patek, Philippe, Genève, Model L4011, L4031 & Time Resetting Module. Made circa 1975. Very fine and rare, Integrated Electronic Master Clock System, three-module tower with Model L4011 clock and five Model L4031 slave units showing the time in three dials. Accompanied by a pamphlet with information about Patek Philippe electronic tower systems. A very powerful Master Clock System capable of controlling an almost unlimited number of "slave" clocks. Can be regulated to 1/1000 of a second. 1. Module L 4011, can be radio controlled based on radio signal from Prangins Observatory 2. Module L 4031, showing time in three dials per unit 3. Module for programming, time resetting and ½ day indication. Upper two units signed.