Electronic apparatus having seal construction at matching section of external members

An electronic apparatus which is capable of reducing the number of parts and assembling man-hours of a seal construction of an matching section of external covers, and making seal performance stable while realizing downsizing of the apparatus. The electronic apparatus has a first external cover, a second external cover abutting to the first external cover through a matching section, a seal member disposed at the matching section, a gap disposed at the matching section on an external side of the electronic apparatus with respect to the seal member, and a third external cover fitted to the first external cover and the second external cover so as to partially cover the seal member. The seal member has, at a part of the gap partially covered by the third external cover, a protruding portion abutting to the third external cover to seal the part of the gap.