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Title: Beautiful 10k Solid Gold Lord Elgin 30 Jewel Automatic Description: EXCELLENT condition. American made 30 jewel automatic (rare). The Elgin Caliber 760 has 6 adjustments and is known for several innovations It features a Durapower mainspring and incorporates Elgin's patented Durabalance system which is a free-sprung balance. A free-sprung balance does not use the conventional regulator pins or balance screws found in most mechanical movements. Instead, the spiral arms of the balance carry two weights, held in place by a spring (click here for a close up photo in another model we sold recently). If the spring is moved, it will cause the weights to follow the spiral arms and move in towards the hub (loss of moment) or out towards the rim (gain). This is a much better system than the old style regulator. Patek Philippe uses a similar method in their Gyromax balance. These rare movements also feature a two gear winding system, switching to a lower gear as the watch is more tightly wound. In addition, most jewels in watches past 23 are redundant or serve no purpose but the additional jewels in this movement are put to use in the innovative non-sprung bi-directional rotor. It is unique to the Caliber 760 and 761 along with several other patented proprietary inventions. Solid, fairly heavy slotted screw back construction but not too thick overall. Beautiful mint original dial, nearmint all original solid 10k gold case and has been gone through, cleaned up and checked out thoroughly by our watchmaker. A new Hadley Roma strap is included. Measures 33 mm wide (not including the crown) x 40 mm long x 9 mm thick. {$375} Item #4792 SOLD
Jon Shaffer 417.793.6364-Office Copyright © 1999-2011 by Jon Shaffer. Last updated: 01/07/12 |