Important Modern & Vintage Timepieces

Geneva, Jun 28, 2020

LOT 105

BOREL FILS & CIE

Patented minute-repeater, chronograph, triple date à guichet (with aperture), moon phases, made for the Russian market; 14K pink gold. Fine and unusual 14K pink gold (56 Zolotniks), hunting-case, keylesswinding, round-shaped, pocket watch, made for the Russian market, with subsidiary seconds at 6 and six horological complications: • Patented minute-repeater on two steel gongs (activated by the slide located on the case-band at 6 o’clock) • 1/5 second chronograph (activated by the single olive-shaped push-piece located on the case- band at 12 o’clock) • Half-instantaneous date of the month (subsidiary dial at 3 o’clock) • Day of the week (subsidiary dial at 9 o’clock; indications given in Russian) • Month of the year (aperture at 12 o’clock; indications given in Russian) • Phases of the moon (aperture at 6 o’clock) Guilloché engine-turning case-back and cover. White enamel dial with radial Roman numerals; yellow gold “Spade” hands. 20’’’, rhodium-plated, straight-line lever escapement, cut bimetallic compensated balance with gold poising screws and blued steel hairspring with terminal curve, index regulator; repeater work with centrifugal governor; chronograph work on the top plate. Movement based on the Swiss invention patent No. 8172, delivered on May 5, 1894, to Numa Robert-WÃ?¦lti, La Chaux-de-Fonds, for a "Nouvelle montre Ã?  repetition et Ã?  remontoir au pendant".