Introduced in 2015 in the Geophysic, caliber 772 features a dead-beat seconds and a worldtime function. From a technical perspective, one of the most notable features of caliber 770 and 772 is the atypical balance wheel featuring a non-circular configuration that required lengthy research in order to reduce air resistance.

The Universal Time's movement, the in-house caliber 772, is comprised of 274 pieces and vibrates at 28,800 alternations per hour. The caliber 770 powers the True Second. It doesn't include a world time feature, but at 275 components, …

2015年9月29日 · This true world-timer is based off the True Second as seen above, and features the caliber 772. The 772 is exactly the same as the 770, complete with Gyrolab balance wheel, gold oscillating wheel, and high end performance, but now with an additional complication.

2015年12月29日 · JLC C.772 powers the Geophysic Universal Time. The movement runs at 28,800 bph with a power reserve of 40 hours. As with the JLC C.770, the C.772 is a rather thick movement, measuring 7.13mm in height which makes it very robust.

Here you can see information about the JLC 772 caliber from the manufacturer Jaeger-LeCoultre. Open this page to view all information about the JLC 772 caliber.

The Jaeger-LeCoultre caliber 770 is a Swiss made in-house automatic movement with 36 jewels, beating at 28,800vph. This caliber is found in JLC Geophysic True Second timepieces, with the notable feature of having a “dead” second complication (see below). When this model was first announced back September 30, 2015, the retail price was $9,050 USD.

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