From Pikipedia, the Pikmin wiki
The Temporal Mechanism (こわれたタイムマシン?, lit.: "Broken Time Machine") is a treasure in Pikmin 2. It's actually a grayish-looking pocket watch labeled with Roman numerals and has the Nintendo logo on its face. The second hand ticks back and forth between two seconds. It is found in the Valley of Repose and is held by a Fiery Bulblax.
Collecting the treasure
It is located at the far side of the field near a body of water inhabited by Water Dumples. The best way to defeat the Bulblax is to lure the Bulblax into the water and attack it with Blue Pikmin after petrifying it.
It is wise to go after this treasure near the start of the day. If the Bulblax is killed but the treasure does not get back to the ship before day's end, it will be inside another Bulblax the next day (unlike other above ground treasures, which stay in place from day to day, seeing as they are not held by enemies).
“While exploring this warped land, I got the feeling that time passed faster than usual. Upon researching it further, I realized it was just my mind playing tricks on me. But whenever I touch this object I can feel the space-time continuum bending!”
“Believe! Believe in the future, in dreams, in unknown wonders, like this broken time machine part. This does not work, so there is no way to confirm its abilities, but surely your heart believes.”
Names in other languages