At 6 o'clock, an aperture reveals the rhythmic round https://www.xbrickpro.com/ of a tourbillon that, like the other indications, is driven by the COSC-certified Heuer 02T Nanograph https://www.diybricksx.com/product-category/middle-ages/ caliber, which delivers 65 hours of power reserve https://www.diybricksx.com/product-category/x-series/ once fully wound by its openworked oscillating weight.