イストワール・ドゥ・トゥールビヨン 5

Mechanical, manual-winding 381 components, 57 jewels, 21,600 vibrations per hour Power reserve: 50 hours Triple axis skeleteon Tourbillon with 3 carriages: Internal carriage containing the balance spring and the escapement pinion rotating cycle of 45 seconds Intermediate carriage rotating cycle of 75 seconds External carriage rotating cycle of 300 seconds