To make clear the selection operation of a function and to effectively utilize a display surface for facilitating reading by adopting a configuration for switching a lap display function and a split display function with the operation of a single operation member.

A multi-functional watch with a chronograph function and the like is provided with a switch S1 for selecting, for example, a mode SPL for split display in the chronograph function or the like and a mode LAP or the like for lap display in the chronograph function. Then, chronograph clocking is started by a switch S2 and a switch S4 is operated to store split or lap time. The stored split or lap time is successively reproduced starting from, for example, past one according to the number of operations of a switch S3, and is displayed by a second hand 105, a minute hand 106, and liquid crystal display parts 111 and 112. By adopting a configuration for calculating one split or lap data from the other, a circuit can be simplified.