Gyrochronatom

Gyrochronatom is an Engineering component created by Engineers. It is just a clock.

Source
This item is crafted with Engineering (170); taught by trainers.

This item is also sold in limited quantities by a large number of engineering suppliers.

Engineering

 * Gnomish Cloaking Device
 * Lil' Smoky
 * Snowmaster 9000
 * Compact Harvest Reaper Kit
 * Advanced Target Dummy
 * Goblin Land Mine
 * Mechanical Dragonling
 * Gnomish Rocket Boots

As a quest objective

 * Gyro... What?