This is a HUGE, 1970’s Hamilton chrono-matic automatic chronograph known as the FONTAINEBLEAU, which uses the same configuration as BREITLING and Bulova movements of the era and was designed by BUREN. This Hamilton houses a caliber 11 movement which was the very first automatic winding chronograph movement produced. The steel case with screw back measures a massive 47mm. across and 14mm. thick. The stainless steel case displays very fine shape overall condition. The original white silver dial with black sub-registers looks fabulous having stark contrast. The crown is correct and signed. The automatic winding caliber 11 movement is functioning flawlessly. This HAMILTON offers a quickset date feature. We really enjoy these watches.