A bezel (310) configured to engage a housing (110) to form the case (100) of a portable electronic device, the bezel (310) comprising: a base structure (312) comprising an externally exposed surface (314), wherein the entirety of the externally exposed surface has a substantially smooth outer surface; and an attachment portion (330) extending from the base structure (312), wherein the base structure (312) and the attachment portion (330) are constructed from a single piece of material, the attachment portion (330) comprising: a plurality of walls (332) configured to extend into the housing (110), the plurality of walls (332) comprising at least one engaging member (336) configured to engage the housing (110); and at least one feature (334), wherein the at least one feature (334) is configured to align with at least one corresponding feature (224) in the housing (110).