Jaeger LeCoultre Q8018420 Geophysic True Second SS (30345)

30345 Jaeger LeCoultre Q8018420 Geophysic True Second, 8018420, stainless steel case on a leather strap with a steel deployant clasp, Automatic Caliber 770, 40 hour power reserve, "True Second" (dead beat seconds), second hairspring to assist in maintaining power reserve for dead beat seconds, independent hour adjustment, silver dial with fine grain finish, luminous steel hands, lume plots on inner rehaut, sapphire crystal, display back, water resistant to 50 meters, diameter: 40mm, thickness: 12mm. Like New with original box and papers dated June of 2016.


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More about Jaeger LeCoultre Q8018420 Geophysic True Second SS

This is a stainless steel Jaeger LeCoultre Geophysic True Second, Q8018420. It has an alligator leather strap with a steel deployant buckle, and a scratch resistant sapphire crystal. It has a push/pull winding crown, an exhibition sapphire display case back, and true (dead beat) seconds. The 40mm diameter solid three-body case, flat bezel, and downturned lugs are polished. It has a silver dial featuring a fine grain finish, luminescent hands and applied baton hour index markers flanked by lume plots on the rehaut. It has independent hour adjustment, a 40-hour power reserve, and it's water resistant to 50 meters/165 feet. The 12mm thick case, dial, and movement are all signed.

The mechanical automatic self-winding Jaeger LeCoultre caliber 770 movement is rhodium-plated, with fausses cotes and oeil-de-perdrix embellishment. It's constructed using 36 jewels, 275 components, a shock absorber mechanism, and the patented Gyrolab balance wheel. It includes a straight-line lever escapement, a monometallic balance that's adjusted to 6 positions, and a self-compensating flat balance-spring. It has a 22 K gold rotor segment, a hacking seconds mechanism, a gold oscillating wheel, and micro screws on the balance for regulation. It oscillates at a frequency of 28,800 vph (4 Hz).