Made By Monkeys

This is a jewel-encrusted bird crafted by Boucheron, with fluttering breast feathers described as "a visual illusion created by the faintly perceived oscillations beneath the translucent stone of MB&F's solid-gold battle-axe-shaped rotor."  Inside there are 305 components keeping the watch mechanism going, with the time being told by his bug eyes.

The owl's eyes are large glowing cabochons, set over the twin cones, and its sparkling wings, wrapped protectively around the precious HM3 engine, are entirely pavé-set with brilliant-cut stones. Its feathered breast is sculpted and engraved from a single block of amethyst or rose quartz. The glowing eyes, sparkling wings and softly gleaming breast create a carefully choreographed play of light. But most mesmerising of all: beneath the owl's breast, its heart appears to be beating. The visual illusion is created by the faintly perceived swings of MB&F's solid-gold battle-axe-shaped rotor beneath the translucent stone.
This effect typifies the hint of secretiveness that Boucheron's artisans instil into some of their best-loved jewels; as does the fact that the uninitiated will need to search for the time indications on the sides of the cones among the owl's sparkling plumage.