1940s Kulm Venus-170 Water-resistant Chronograph Black-gilt Multi-Scale Design

1940's "KULM"? This is a rare black gilt dial water proof chronograph with Venus 170. The screw back waterproof case with a sense of gravity fascinates a wonderful presence even though it is a small 33mm size, and the rare black gilt dial is a wonderful design with a sense of condensation with multi scales in the outer circumference, and fascinates an expression unique to the 40s. It is a hidden gem with excellent design and quality even though it is an obscure type, such as equipped with Caliber 170, a vertical two-eye movement made by Venus, which supplied machines to many brands.