Important Collectors’ Wristwatches, P...

Geneva, Mandarin Oriental Hotel Du Rhône, May 13, 2007

LOT 185

?Two-Day Marine Lever Chronometer? Ulysse Nardin, Locle, Suisse, No. 6752, ?Fabriqué Specialement pour Longines?. Made circa 1945. Fine and rare, two-day going, marine lever chronometer with power reserve indication, and electrical contact breakers, in the original three-tier mahogany box.

C. Brass bowl with threaded glazed bezel fixed inside center section of the box, lower part with electrical connections, left side with electrical outlet. D. Silvered, matte, radial Roman hour numerals, outer minute track, subsidiary seconds dial at 6 o'clock with Arabic 10-second numerals, power reserve indication below 12. Blued steel "spade" hands. M. 70 mm, frosted gilt brass, cylindrical pillars secured by screws, 18 jewels, fusee and chain, straight-line lever escapement, bimetallic compensation balance with blued steel Breguet balance spring, patented cam-type micrometer regulator. Dial, case and movement signed. Dim. bowl 88 mm diam., box 127 x 127 x 80 mm.