Kaltor

Kaltor is an Autobot from the Generation 1 continuity family.

Other Kronoforms might be thinkers or lovers, but Kaltor is clearly a fighter.

Kaltor transforms from a robot to a time machine styled after a human calculator watch.

It is unknown whether he needed to be in watch mode to travel in time, or if he was able to access the ability in both modes.

Toys

Generation 1

• Kaltor (Kronoform, 1985)

Kaltor transforms from a robot to a working digital calculator-watch (remember when those were really awesome?). He originated in the same Japanese Microman subline that spawned Scorpia and most of the other Transformers watches, as well as scores of knockoffs. Like most of the official Transformers watches, Kaltor is rather rare nowadays.

From Teletraan I: The Transformers Wiki, a Wikia wiki.