1860 Kintaro was born in Ginza, Tokyo.
1881 He establishes his company K. Hattori and opens a shop selling and repairing clocks and watches in Ginza, Tokyo.
1892 He establishes the Seikosha Factory.
1895 Kintaro opens a store at the corner of Ginza 4 chome and produces the company's first pocket watch, Timekeeper.
1905 Now the largest watch & clock dealer in Japan, Kintaro opens sales agencies in Shanghai and Hong Kong.
1913 The Laurel, Japan's first wristwatch, was introduced.
1923 The Seikosha factory and the offices of K. Hattori & Co Ltd. burn down in the fire that devastated Tokyo after the Great Kanto Earthquake on September 1. Kintaro immediately started to re-build them and won the trust of the public by publicly offering to replace free of charge about 1,500 watches and clocks that were to be repaired but were destroyed by the fire.
1924 Kintaro launches the first watch to carry the SEIKO name.
1930 He establishes the Hattori Hokokai Foundation to provide scholarships and public works support. The Foundation is still active today.
1932 Kintaro completes a new building on the same site as his original headquarters. Today, it is home to Wako which is a wholly owned subsidiary of Seiko Holdings Corporation and is a luxury specialty retail store.
1934 Kintaro dies at the age of 73.