Important Collectors Watches, Pocket ...

Geneva, May 10, 2009

LOT 170

Two Patek Philippe Master Clocks A. Electronic Master Clock Patek Philippe, Genève, Model L4031. Made circa 1975. Very fine, Electronic Center Seconds Master Clock.
B. Digital Time Display Master Clock Patek Philippe, No. 841637 & No. 851900, Model ZG 4 & ZL 4. Made in the 1970s. Fine and rare, electric 110/220v aluminium and blue coated LED digital master clock display with day and month indication and control unit. To be sold without reserve

C. Rectangular with two handles, wood-effect sides. D. Black with Arabic numerals, outer minute divisions, outer Arabic fivesecond numerals and divisions, brushed fascia with buttons for adjusting the 1/10 and 1/1000 seconds. White baton hands. M. Electronic, a very powerful Master Clock System capable of controlling an almost unlimited number of ?slave? clocks and can be regulated to 1/1000th of a second. Dial and case signed. Dim. 42.5 x 23 x 13 cm.

B. ZL 4 unit with aluminium casing and blue coated metal top and base, LED linear digital display with day, month, hour, minute and seconds displays. ZG 4 unit with four buttons for setting the time and date display, terminals at the back for up to four slaves. Both units signed. Dim. 19 x 9.5 x 15 cm each.