This skeleton work presents a technical and aesthetic challenge. Technical, as the calibre is updated through tiny openings as numerous as they are delicate and created without the use of any sharp angles, in keeping with the curvature and harmony of the Earth. The new Highlife Automatic Skeleton is in the same vein. The highly original cut-out of the Earth at its centre reveals the beating heart of the movement: at 12 o’clock, the balance wheel; between 5 o’clock and 6 o’clock, the barrel, wound by the winding stem found at 3 o’clock.