Heuer Calculator Ref. 150.633B
This extraordinary Heuer model dated from 1973 was named Calculator because of the slide rule as turning bezel. The automatic winding chronograph with Cal.Heuer / Buren 15, Ref. 110.633B has got the crown on the left side. The timepiece in very good condition has a blue dial, 1 blue subdial, permanent second hand on 10 o´clock and date indicator at 6 o´clock. Unpolished, authentic condition with original stainless steel bracelet.