Asymmetric digital watch module

摘要

An electronic watch module includes a circuit board having all the electronic watch components including a plurality of LED's and a CMOS integrated circuit device mounted on one side thereof defined as the face of the board. The board is of a generally flat circular configuration and having generally rectangular cutouts at the upper side thereof for mounting a crystal oscillator and a pair of arcuate slots or cutouts along the edge thereof for mounting a pair of elastomeric switch contact members. A cover for the board includes a transparent portion defining a transparent portion sealingly enclosing the LED's and an opaque portion defining an opaque compartment for sealingly enclosing the CMOS integrated circuit device. The cover is hermetically sealed to the board for sealing these components. The overall layout of the circuit on the board is related to guide flats to facilitate automatic testing.