Important Collectors’ Wristwatches, P...

Geneva, Mandarin Oriental Hotel Du Rhône, May 13, 2007

LOT 61

?Master Clock? Léon Hatot, Fabricants, Paris, (ATO), No. 200096. Made circa 1937. Fine, electric ?master? precision wall regulator with center seconds and half-second pendulum.

CHF 1,500 - 2,500

EUR 900 - 1,500 / USD 1,200 - 2,000

Sold: CHF 1,888

C. Rectangular, black patinated body, chromed bezel, slave connections on the top. D. Square, two-tone, champagne chapter ring with black Art Deco numerals, outer minute and seconds track. Black ?baton? hour and minute hands, red center seconds hand. M. Half-second electromagnetic pendulum activating the electrical contacts, micrometer adjustment, two coils. Dial and movement signed. Dim. 41 x 22 x 8.5 cm. Property of a French Gentleman


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Grading System
Grade: A

Good
Case: 4-6

Fair

Slightly oxidized
Movement: 3*

Good

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

Good

HANDS Original

Notes

The Hatot master clock has a half-second pendulum which activates contacts to the left and right. At each alternate swing, these contacts transmit a current directly to the coil of one or more clocks with quarter-second beating pendulums that do not have their own contact systems. As such, they are synchronized with the master clock and each secondary clock receives an impulse at each oscillation of the master clock?s pendulum.