Sigma Sport Computer Parts

Small O ring seal for some of the first generation Sigma computers

Large O ring seal for some of the first generation Sigma computers

Double battery Spring for cover to fit some of the first generation Sigma computers

Double battery cover, Spring fit type for some of the first generation Sigma computers

Double battery cover, push fit type for some of the first generation Sigma computers

Battery cover self tapping screws to fit some of the first generation Sigma computers