To provide a portable electronic timepiece capable of downsizing a product without reducing a display area. Zebra rubbers are respectively fixed attached to left and right side faces of a contact member attached portion of a case by making a fixed contact portion constituting a button shaft opposed face thereof disposed on an extension of a button shaft and bringing a section connecting portion thereof into contact with connecting patterns of a contact/main board connecting portion of a main board. When the button shaft is inserted into a button shaft guide hole, a front end thereof is brought into contact with a surface of a bowl type rubber switch member having a section in a channel-like shape. At the same time, the operating button is contained in a button containing recess portion formed at an outer peripheral portion of the case may be to a degree of capable of forming the button containing recess portion, and therefore, downsizing a product is not influenced by the thickness of the outer peripheral portion of the case.