Eberhard Contograf Ref. 31506/351 – 1970

The Eberhard & Co. Contograf Ref. 31506/351 from the 1970s is a manual-winding chronograph featuring a 38mm tonneau-shaped stainless steel case. Powered by the in-house caliber 310-82, running well and being serviced recently. The blue dial with the stunning sub-dials, colorful accents, and tachymeter and pulsation scales gives it a distinctive vintage appeal. Originally offered with an integrated steel bracelet, it remains highly sought after by collectors for its unique design and innovative features.