VENUS Automatic Antimagnetic 21Jewels 18K 750 Solid Gold Cal.F690 Bidynator Large Vintage Swiss Made Weight 36 Grams without the strap. Approximately just gold value on 02/25/26 around $2,500 History of the maker: Venus was established in 1923 in Moutier, Bern Canton, Switzerland. It was quickly absorbed into Ebauches SA in 1928 and produced its first chronograph movement, Cal. 103, in 1933. Venus movements are marked with a five-pointed star. Venus became famous for chronograph movements, many of which were used by high end Swiss brands. The Venus column wheel chronograph calibres are widely regarded today as being the finest ever produced and remain in great demand. Among these are the Cal. 170, Cal. 175, Cal. 178, and Cal. 179, a three-pusher split-seconds chronograph movement. Venus also produced cam switching movements. The Venus 180/190/200 series were all cam-switched. But these low-cost movements did not provide sufficient liquidity and Venus was absorbed by rival Valjoux in 1966. The then-new Venus 188 movement was the basis for the Valjoux 7730 and its technology lived on in the Valjoux 7750, still one of the most popular chronograph movements. Old stock of Venus movements has been depleted in recent years, leading to a run-up in prices for watches with these movements. Jaquet SA became expert at refinishing Venus calibres and, under new name La Joux-Perret, has built up capability to re-create parts and even entire movements if needed. Reissue The popularity and beauty of Venus calibres has led to resurrections of the type in the 2000's. In 2000, a number of Venus 179 and 185 movements were reissued by Panerai, Parmigiani, and others. Similarly, in 2004, Maurice Lacroix reissued a series of 150 classic Venus 175 movements for their Masterpiece series, re-branding them Calibre ML 36. In Great Working Condition, Keep Very Accurate Time. Just recently was serviced. Please have a look at our vintage watches we have constantly listed on Chrono24. You can see all our listings by scrolling down to the "seller information section" and clicking on the "VIEW CURRENT LISTINGS" button.