A chronometer to monitor the passage of time prior to a projected date of birth of a baby and to recognize and celebrate the birth of the baby. The chronometer includes a generally hollow egg-shaped housing including a bottom, a top, a hinge mechanism, and a latching mechanism. The hinge mechanism rotatably connects the top to the bottom so the top can open and close. The latching mechanism releasably connects the top to the bottom. The chronometer also includes a replica of a young chicken housed in the chronometer, and includes a display to indicate the length of time until the projected birth date of the baby.