| Issuer | Japan |
| Year | 2019 |
| Type | Circulating commemorative coin |
| Value | 100 Yen |
| Currency | Yen (1871-date) |
| Composition | Copper-nickel clad copper |
| Weight | 4.8 g |
| Dimensions | 22.6 mm |
| Thickness | 1.7 mm |
| Shape and Technique | Round Milled |
| Orientation | Medal alignment ↑↑ |
| Engraver(s) | |
| In circulation to | |
| Reference(s) | JNDA#25-09, Y#268 |
| Obverse description | Two karate fighters mid-fight, authority on top, value at the bottom |
| Obverse script | |
| Obverse lettering | 日本国 百円 (Translation: State of Japan 100 yen) |
| Reverse description | Emblem of the Olympic Games Tokyo 2020 surrounded by text |
| Reverse script | |
| Reverse lettering | OLYMPIC GAMES TOKYO 2020 TOKYO 2020 • 平成31年 • 100YEN • (Translation: Olympic Games Tokyo 2020 Tokyo 2020 Year 31 of Heisei 100 Yen) |
| Edge | Slanted reeding |
| Mint | |
| Mintage | 31 (2019) - - 3 948 000 |
| Catalog ID | 9826610770 |
| Comments |
