Heuer Carrera 1553S, Buren 15, Jo Siffert Lotus 49B

Heuer Carrera 1553S, Jo Siffert Lotus 49B

Automatic chronograph caliber Buren 15(internal micro rotor) was developed by a joint venture between Heuer, Breitling, Buren and Dubois-Depraz during the 60's

Piece unique, model dedicated to the legendary racing driver Jo Siffert