Hamilton rare chronograph 7823 serial number 171xxx with Valjoux 7732 in excellent condition. Dial is flawless. All original stainless case and caseback. Approximately 36mm not including the crown. Lug width is 19mm. Service history is unknown, but is keeping good time and functions properly. Movement is super clean. Will come on your choice of a black strap or tan. Case, caseback, crown, crystal have light scratches from use. Asking $3950 shipped overnight for free. International shipping is $69. I am located in the United States. I have another Hamilton panda dial chronograph for sale also in the sales forum. Thank you OF for the space.