The Art of Horology in Geneva

Geneva, Hotel Des Bergues, Nov 13, 1999

LOT 143

H. R. Ekegrén, No. 84522, Geneva, made byE. Koehn, for J. E. Caldwell & Co., Philadelphia,circa 1915.Very fine 18K gold keyless, jewelled with blue sapphires.

CHF 8,000 - 10,000

Sold: CHF 8,625

C. Three body, massive, "demi-bassine" with concealed hinges, polished. Hinged gold cuvette engraved with a dedication dated 1916. D. White enamel with "Empire" Roman numerals and sunk subsidiary seconds. Gold Breguet hands. M. 19''', nickel plated, with going barrel, 21 jewels in blue sapphires, counterpoised straight line lever escapement, brass-invar Guillaume balance, eight adjustments, Breguet balance spring with swan-neck micrometric index.Signed on the dial, case and movement.Diam. 51 mm.


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Grading System
Grade: AA

Very good
Case: 3

Good
Movement: * 4 - 5
Dial: 3 - 01

Notes

Watches with blue sapphire jewel bearings are very rare, the most celebrated being the famous "Howard Blue Sapphire", reputed to be one of the best quality watches ever made in the U. S. A. and produced at 300 examples only.