Important Collectors' Wristwatches, P...

Hong Kong, Jul 10, 2005

LOT 12

?Self-Winding? August Von Loehr, Swiss made, No. 214, circa 1880. Fine and rare silver self-winding, square, ?perpetual? pocket watch with power reserve indication.

HKD 14,000 - 17,000

EUR 1,500 - 1,800 / USD 1,800 - 2,200

C. Four-body, entirely engraved with masks, scrolls and foliage,silver hinged cuvette. D. White enamel, radial Roman numerals,outer minute track and Arabic five minute numerals, subsidiaryseconds at 10, power reserve scale at 2. Gold ?Louis XV? hands.M. Square, 38 x 38 mm. (17 x 17???), nickel, 15 jewels, lateralcounterpoised lever escapement, cut-bimetallic compensationbalance with flat balance spring, jeweled T-shaped oscillatingweight with steel banking pins, index regulator.Signed on the dial and case ?Loehr Patent?, on cuvette ?Patentperpetual No. 216?.Dim. 48 x 48 mm.


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Grading System
Grade: AA

Very good
Case: 4 - 6 - 14
Movement: 4 - 6**
Dial: 4 - 12 - 01

Notes

On April 12, 1878 August von Loehr of Vienna filed for a British patent for a self-winding watch with a special simple overwinding prevention system and a special setting mechanism. On July 13, 1878, he filed for a USA patent, which was granted on January 7, 1879 (No. 211280). Before Loehr?s invention, self-winding watches required an elaborate disengaging system when fully wound. Loehr overcame this problem in a very simple way by employing an elastic ratchet pawl.