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The Chronomètre Optimum is a high-precision wristwatch that offers exceptional accuracy. It features a manually wound mechanical movement, two barrels, a constant force remontoire, a high-performance bi-axial escapement, and natural dead-beat seconds. It is powered by the Calibre 1510, a meticulously crafted 18K rose gold manual-winding movement that requires 27 turns of the crown to fully wind. The movement has a 34.00 mm diameter and a height of 5.80 mm, with a winding system height of 2.395 mm and a stem thread diameter of S1.20 mm. The chronometric balance includes an inertia weight, a Phillips curve hair spring, a mobile stud holder, and a free-sprung design, with a pinned GE stud enhancing precision.
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