Hamilton 7723 rare chronograph with panda dial. Serial 123xxx. In excellent condition housed in a stainless steel case and caseback. Light scratches on the crystal, case, caseback, and crown. Valjoux 7730 with no service service history, but keeps good time and very clean. Comes with a choice of tan or black strap. Asking $3650 with free overnight shipping to the United States. International shipping is fedex $69.