Siheyuan: Three Watches in Exchange for Nuclear Weapons Technology

As soon as Lin Feng obtained the time-space trading system, he exchanged old objects for arms that were far ahead of his time, and took the initiative to confess all his secrets to the country. A calligraphy and painting can be exchanged for thousands of tons of grain, an old-fashioned bicycle can be exchanged for missiles, and a few watches are even enough to obtain cutting-edge weapons and complete technical data. The navy lacked air defense capabilities, so he purchased shoulder-fired anti-aircraft missiles. The fleet needed ocean-going capabilities, and he sent destroyers, cruisers, and submarines to the docks. Researchers were so excited about future technologies that they stayed up all night, but foreign fleets watched helplessly as their originally weak navies quickly completed cross-generational upgrades. Lin Feng also worked his way from a small buyer in the Yanjing office to a senior naval cadre in charge of major top-secret projects. The most inconspicuous old thing in his hand, after falling into the trading space, may become an important national weapon that reshuffles the world's military structure. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.