Obi-Wan Kenobi's lightsaber

"This weapon is your life."

- Obi-Wan Kenobi to Anakin Skywalker

When Kenobi was a youngling and Padawan, he was given a lightsaber by an unknown Jedi, probably Yoda, for training. His first Padawan lightsaber accompanied him until an unknown circumstance. Kenobi built a new lightsaber based on the designs of his friend Quinlan Vos and his Master Qui-Gon Jinn.

The second Padawan lightsaber was with him until the Battle of Naboo, when Darth Maul disarmed Kenobi and kicked his lightsaber down a generator shaft. To defeat the Sith, Kenobi used Force pull to reach for his fallen Master's discarded lightsaber and kill Maul. There were debates as to what happened to Kenobi's second Padawan lightsaber. Either he somehow retrieved his saber from the pit or replaced his lost one by making an exact replica. He used Jinn's lightsaber for an unknown time.

Ten years after his Master's death and the approval of his training of young Anakin Skywalker, Kenobi still used the same design as his second Padawan lightsaber. This lightsaber was lost when Kenobi was captured by the Separatists on Geonosis. During the Battle of Geonosis, he was given a temporary replacement by one of the Jedi in the task force that had come to rescue him, Skywalker and Senator Amidala. Kenobi later reacquired his own lightsaber and used it during the early part of the Clone Wars.

After being promoted to the rank of Jedi Master, Kenobi built what was to be his final lightsaber. This last one was based on the design of his first Padawan saber. During his exile, he made some adjustments with its parts, such as changing the belt fastener from a clip to a ring.

Even after his death, he left a journal of how to create a lightsaber. Luke used that journal to build his first lightsaber based on the design of Kenobi's. In the New Jedi Order, that design provided inspiration to the newer generations, like Jaina and Anakin Solo.

Lightsaber debate
There have been debates about Kenobi's lightsaber during Revenge of the Sith due to his appearance in the Clone Wars animated series. Some say he wields the same lightsaber in Episode III as he wielded in Episodes II and I. Kenobi constructed his final lightsaber during the Clone Wars; however, there are quite a few scenes in the Clone Wars animated series that show his lightsaber quite clearly, and the lightsaber is the same one he wielded during The Phantom Menace and Attack of the Clones. It can be speculated that Kenobi lost that lightsaber during his imprisonment on Rattatak. Although some companies that make replicas, such as Master Replicas, use Kenobi's "final" design for the Revenge of the Sith model, other lightsaber replica makers claim that he wielded the same lightsaber in Episode III as in I and II. During the Revenge of the Sith movie, there are several scenes that show his lightsaber clearly, all of them showing his lightsaber resembling his final lightsaber, and there are no shots that show the same lightsaber he wielded in Episodes I and II. The lightsaber had exactly the same parts so they worked the same.