L\'ART DE L\'HORLOGERIE EN FRANCE DE ...

Geneva, Hotel Des Bergues, Nov 14, 1993

LOT 292

François-Paul Journe No. 6/87 made in 1987. Exceptional and unique 18 ct. gold, moon phase astronomical double dial watch with orrery, sidereal time, equation of time, power reserve indication, and annual calendar with the seasons, with special escapement, remontoire and one minute tourbillon regulator. With original gold key, short gold chain, in green leather fitted box, with original drawings.

C. Three body, massive, polished with concealed hinges, glazed back and front. D. Gilt brass on the front, with silver subsidiary chapter rings on the Ieft for the sidereal time calibrated for 24 hours with jumping hour hand, mean time on the right with inner moon phase aperture, the continuous seconds below, sectors above for the equation of time and up-and-down scale, outer Arabic minute ring on the border of the bezel. blued-steel Breguet hands. Skeletonised rear dia] with outer revolving silver ring for the annual calendar, subsidiary small chapter for the seasons indicated by the earth axis, inner ivory terrestrial globe revolving in 24 hours with the moon revolving around it in 29 1/2 days. Gold sphere representing the sun at the centre. M. 60 mm., gilt brass with twin barrels wound separately with a male key, 20 jewels, 5 second remontoire of the maker's own design, spring detent escapement with gold escape wheel, monometallic three arm balance with poising screws, free-sprung self compensating balance spring with terminal curve. One minute tourbillon regulator with polished steel two arm carriage. blued-steel equation cam of special form, on the border and revolving with the annual calendar ring. Signed on the dia] and numbered on the movement. In mint condition. Diam. 71 mm.