The Kalpa Chronor is part of a series of new Kalpa tonneau-shaped watches unveiled this year that recall the original 2001 creation, but with updated detailing and exclusive, shaped movements. The new movement of the Kalpa Chronor, the COSC-certified chronometer caliber PF365, took six years to create. Designed, developed and built entirely in house, the PF365 is the world's first 18K gold self-winding integrated chronograph movement with column wheel and vertical clutch. In typical haute horlogerie style, each component of the 348-part movement is meticulously hand-finished. In addition to offering 65 hours of power reserve, the Kalpa Chronor has chronograph functions, date and tachymeter for measuring speeds.Water resistant to 30 meters, the case is crafted in 18K rose gold with a black opaline dial and hand-worked guilloché on the flange and counters, giving it an elegant look, rather than the sporty style of many chronographs. The tonneau-shaped movement is visible via a sapphire caseback.