Very rare unique vintage Swiss Made Early Chronoswiss watch from 1983. This watch has been the source of the success of Gert Lang , founder of Chronoswiss . In the early years of the brand, his watches are made by the famous Swiss watch house Rochat & Fils. This very rare specimen with Roman numerals on the dial , shows a moon phase and date . The glass bottom gives a very beautiful view at Valjoux 7734 movement. It is likely that there are only made a very few of this timepiece. The watch keep good time. Specifications: Chronoswiss Chronograph Alfred Rochat & Fils 1983 Mechanical Swiss Made Valjoux 7734 Handwound 17 Rubies Chronograph Calibre Yellow gold plated case 37mm in diameter and 0.9 cm thickness White dial with Roman numerals , Date and Moon Phase Display Curved glass ( without scratches ) Transparent glass bottom ( without scratches ) 18mm lugwide. At this moment there is a 20mm genuine crocodile leather strap with gold-plated buckle, 22cm. The watch comes with box but no papers.