This three-axis tourbillon movement is a 3D printed marvel

The three-axis tourbillon is one of the most complex watchcomplications in the world. Originally based on a design by watchmaker Abraham-Louis Breguet,this type of tourbillon – literally “whirlwind” – rotates the balance wheel of a watch in order to ensure that gravity doesn’t adversely affect any part of the watch. It’s a clever, complex, and essentially useless complication in an era of atomic clocks and nano materials but darn if it isn’t cool-looking