Sequin (coin)
（重定向自Zecchin）
![50 zecchini from the reign of Paolo Renier (1779–89), penultimate Doge of Venice. This denomination (on average) weighs 192.5 grams (6.19 ozt) and measures 76 millimetres (3.0 in).[1]](/Images/godic/202502/22/Italian_States-Venice_(1779-89)_50_Zecchini3445.jpg")
The sequin (/ˈsiːkwɪn/; Venetian and Italian:zecchino [dzekˈkiːno; tsek-]) is a gold coin weighing 3.5 grams (0.12 oz) of .986 gold, minted by the Republic of Venice from the 13th century onwards.
The design of the Venetian gold ducat, or zecchino, remained unchanged for over 500 years, from its introduction in 1284 to the takeover of Venice by Napoleon in 1797. No other coin design has ever been produced over such a long historical period. The 500-year run of the zecchino is unique in history.