Important Modern & Vintage Timepieces

Hong Kong, May 10, 2020

LOT 233

Longines - Double-faced pocket watch, chronographs, minute-recorders, calibre 19.73 N; “Anti Magnétique”; 18K yellow gold

18K yellow gold, double-faced open-face, keyless-winding, round-shaped, pocket watch, with subsidiary seconds at 6 and four horological complications: The first dial features: • 1/5 second chronograph (activated by the single round push-piece located on the winding-crown) with outer ring divided in 300 • Instantaneous 30-minute recorder (subsidiary dial at 12 o’clock) The second dial features: • 1/5 second chronograph (activated in the same time; the chronograph-hand turns counter-clockwise) with two Archimedean spiral telemetric scales graduated for 1 000 metres, for one to five minutes base • Instantaneous 5-minute recorder (sector at 12 o’clock). White enamel dial with suspended “Breguet” numerals. On the reverse, white enamel with multicolour double scales (counter-enamel signed “Z.J.”). 19.73 N, 19’’’, gilded brass, going barrel, straight-line equilibrated lever escapement, monometallic screw-balance and self-compensating Breguet hairspring, index regulator; chronograph work on the top plate.