Hong Kong, May 29, 2022

LOT 383

Hermann Oscar Bovet
Chronograph, minute and hour counters, independent secondary chronograph; “Double Chronographe Compteur”, “Montre Universelle Patentée”; silver

HKD 15,900 - 31,700

EUR 1,950 - 3,900 / CHF 2,000 - 4,000 / USD 2,100 - 4,100

Sold: HKD 30,000

Silver (0.800), open-face, keyless-winding, round-shaped, pocket watch, with four horological complications:
· 1/5 second chronograph (activated by the winding-crown at 12 o’clock)
· Dragging 60-minute counter (subsidiary dial at 9 o’clock; return to zero activated by the single push-piece located on the case-band at 9 o’clock)
· 24-hour counter (subsidiary dial at 3 o’clock; return to zero activated by the same push-piece)
· Independent secondary 1/5 second chronograph (subsidiary dial at 6 o’clock; start and stop activated by the single push-piece located on the case-band at 3 o’clock; return to zero activated by the previous single push-piece located on the case-band at 9 o’clock)

Case-back polished.

White enamel dial with radial Roman numerals; blued steel “Spade” hands.

Movement 19’’’, gilded brass, going barrel, straight-line equilibrated lever escapement, cut bimetallic compensated balance with gold poising screws and blued steel hairspring with terminal curve, polished steel index-regulator; chronograph work on the top plate; secondary chronograph work and heart-pieces mounted under the dial.


Grading System
Grade: AAA

Excellent

Case: 3

Good

Movement: 3*

Good

Overhaul recommended, at buyer's expense

Dial: 3-01

Good

HANDS Original

Brand Bovet, Bienne / Biel

Model “Double Chronographe Compteur” (Double Chronograph Counter), “Montre Universelle Patentée” (Patented Universal Watch)

Year circa 1890

Movement No. 41 334

Case No. 41 253

Material silver (0.800)

Diameter 56.2 mm.

Caliber 19’’’, straight-line lever escapement

Weight 134.9 gr. (approx.)

Signature movement

Accessories copies of the invention patents and Hans Weil’s article

Notes

Movement based on the Swiss invention patent No. 12, delivered on December 1st, 1888, to Hermann Bovet, Bienne / Biel, for a “Nouveau système de chronographe-compteur” (New chronograph-counter system), and the additional patent No. 01, delivered on January 21, 1889 (improvement allowing the precise return to zero of the 60-minute counter hand).

Movement based on the Swiss invention patent No. 1 527, delivered on October 29, 1889, to H. Bovet, Bienne / Biel, for a “Montre à double chronographe” (Double chronograph watch).