Eberhard & Co. has added an original 1969 Contograf reference 31504 to its Museum collection, highlighting the Maison’s historic chronograph expertise. Part of the Contograf family introduced in the 1960s, the timepiece combines sporty character with distinctive graphic design. Its manual-winding Calibre Eb 310-82 offers chronograph and date functions. The 43 mm stainless-steel case features a black “reverse panda” dial with symmetrical white counters, luminous square indices, and balanced baton hands. An oval case recalls the Scafograf collection, while tachymeter and telemeter scales are screen-printed beneath the plexiglass crystal, showcasing the innovative aesthetic and technical solutions of its era.