Saltah'Na Clock
From Star Trek : Freedom's Wiki
The saltah'na clock was a device from the ancient Saltah'na race from the Gamma Quadrant.
In 2369, while under the influence of a Saltah'na Energy Sphere, Commander Benjamin Sisko built such a complex mechanical clock. (DS9: "Dramatis Personae")
Sisko kept this clock in his office on board Deep Space 9. (DS9: "The Maquis, Part I", "The Way of the Warrior")
In an alternate timeline, Jake Sisko kept this clock in his house in Louisiana on Earth. (DS9: "The Visitor")
Benjamin Sisko did some repairs on the clock in early 2372. (DS9: "Hippocratic Oath")
