This is a very rare 1930s Omega pocket watch chronograph with the Cal. 39CHRO movement, crafted in 18k yellow gold, featuring a porcelain dial and a beautifully designed six-color scale. It is equipped with the Cal. 39CHRO, a chronograph movement in a 39mm case. The dial showcases Omega’s signature multi-color scale, ranging from 240 km to 10.5 km, making it suitable for high-speed measurements, such as for automobiles, as well as for lower-speed activities like walking or cycling. This remarkable six-color scale, rarely seen on wristwatches, epitomizes functional beauty and is made possible by the large size of the pocket watch.
The term 'Cadran' is French for 'dial,' while 'Breveté' indicates 'patented,' and 'SGDG' stands for 'Sans Garantie Du Gouvernement,' meaning 'without government guarantee.' This signifies that the product was patented in France, but the government does not guarantee its performance or quality. The double-backed 18k yellow gold case bears an owl mark, indicating it was intended for the French market, confirming that it was shipped to France at that time.