Minerva, Valjoux 72 powered,? chronograph, stainless steel, water-resstant,? rare Decimal dial, unpolished case, circa 1950s. The screw-back water-resistant case with round pushers has a dignified structure that is unique to Minerva of this era, and the silver dial with beautiful luster has a unique look that only a decimal scale design can offer. It is equipped with the famous Cal.72 made by Valjoux, which was used by many brands including Rolex in the same period. The case is in a well-preserved condition, with the original shape and engraving on the back of the case still intact, and the luminous dial and hands still contain their original radium luminescence.