A timepiece with a wireless function comprising: an antenna that is stored in a housing to receive a radio wave from the external; a dial plate that is composed of a non-conductive material disposed in the housing; a watch case that configures at least a part of the housing and is conductive; a rear cover that is conductive; a windshield; and a packing provided between the windshield and the watch case for waterproofing the timepiece with a wireless function, characterised in that the watch case is separated into a plurality of parts including a watch case body and a dial ring, wherein a lining receiving portion of the watch case protrudes on an inner peripheral side thereof, the dial ring is mounted on the lining receiving portion, and the packing is disposed on the upper end of the dial ring; the lining receiving portion is conductive; the dial ring is conductive; and an insulating region is disposed between the lining receiving portion and the dial ring of the watch case to insulate the lining receiving portion and the dial ring from each other, wherein the insulating region is disposed on the dial plate side of the opening ends of the antenna, and is disposed at least around a section (71;72) of the opening ends of the antenna in plan view; wherein the insulating region is disposed only between the lower surface of the dial ring and the upper surface of the lining receiving portion, and an insulating member composes the insulating region disposed between the dial ring and the lining receiving portion; and wherein there is a space between an outer peripheral face of the dial ring and a side face of a shoulder section formed by the lining receiving portion. an antenna that is stored in a housing to receive a radio wave from the external; a dial plate that is composed of a non-conductive material disposed in the housing; a watch case that configures at least a part of the housing and is conductive; a rear cover that is conductive; a windshield; and a packing provided between the windshield and the watch case for waterproofing the timepiece with a wireless function, characterised in that the watch case is separated into a plurality of parts including a watch case body and a dial ring, wherein a lining receiving portion of the watch case protrudes on an inner peripheral side thereof, the dial ring is mounted on the lining receiving portion, and the packing is disposed on the upper end of the dial ring; the lining receiving portion is conductive; the dial ring is conductive; and an insulating region is disposed between the lining receiving portion and the dial ring of the watch case to insulate the lining receiving portion and the dial ring from each other, wherein the insulating region is disposed on the dial plate side of the opening ends of the antenna, and is disposed at least around a section (71;72) of the opening ends of the antenna in plan view; wherein the insulating region is disposed only between the lower surface of the dial ring and the upper surface of the lining receiving portion, and an insulating member composes the insulating region disposed between the dial ring and the lining receiving portion; and wherein there is a space between an outer peripheral face of the dial ring and a side face of a shoulder section formed by the lining receiving portion.