History The won was reintroduced on June 10, 1962, at a rate of 1 won = 10 hwan. It became the sole legal tender on March 22, 1975, with the withdrawal of the last circulating hwan coins. Its
ISO 4217 code is KRW. At the reintroduction of the won in 1962, its value was pegged at 125 won = . The following pegs operated between 1962 and 1980: On February 27, 1980, efforts were initiated to lead to a
floating exchange rate. The won was allowed to float on December 24, 1997, when an agreement was signed with the
International Monetary Fund. Shortly after, the won was devalued by almost half, as part of the
1997 Asian financial crisis.
Coins Until 1966, 10 and 50 hwan coins, revalued as 1 and 5 won, were the only coins in circulation. New coins, denominated in won, were introduced by the Bank of Korea on August 16, 1966, in denominations of 1, 5 and 10 won, with the 1 won struck in
brass and the 5 and 10 won in
bronze. These were the first South Korean coins to display the date in the
Gregorian calendar, earlier coins having used the
Korean calendar. The 10 and 50 hwan coins were demonetized on March 22, 1975. In 1968, as the intrinsic value of the brass 1 won coin far surpassed its face value, new
aluminium 1 won coins were issued to replace them. As an attempt to further reduce currency production costs, new 5 and 10 won coins were issued in 1970, struck in brass.
Cupronickel 100 won coins were also introduced that year, followed by cupronickel 50 won coins in 1972. The new coin is made of copper-coated aluminium with a reduced diameter of , and a weight of . Its visual design is the same as the old coin. The new coin was issued on December 18, 2006. The 1 and 5 won coins are
rarely in circulation since 1992, and prices of consumer goods are rounded to the nearest 10 won. However, they are still in production, minting limited amounts of these two coins every year, for the Bank of Korea's annual mint sets. In 1998, the production costs per coin were: 10 won coins each cost 35 won to produce, 100 won coins cost 58 won, and 500 won coins cost 77 won.
Banknotes The
Bank of Korea designates banknote and coin series in a unique way. Instead of putting those of similar design and issue dates in the same series, it assigns series number X to the Xth design of a given denomination. The series numbers are expressed with
Korean letters used in alphabetical order, e.g. . Therefore, 1,000 won issued in 1983 is series II () because it is the second design of all 1,000 won designs since the introduction of the South Korean won in 1962. In 1962, 10 and 50 jeon, 1, 5, 10, 50, 100 and 500 won notes were introduced by the Bank of Korea. The first issue of 1, 5, 10, 50, 100 and 500 won notes was printed in the
UK by
Thomas De La Rue. The jeon notes together with a second issue of 10 and 100 won notes were printed domestically by the
Korea Minting and Security Printing Corporation. In 1965, 100 won notes (series III) were printed using
intaglio printing techniques, for the first time on domestically printed notes, to reduce counterfeiting. Replacements for the British 500 won notes followed in 1966, also using intaglio printing, and for the 50 won notes in 1969 using
lithoprinting. Newly designed 500 won notes were also released in 1973, and the need for a medium denomination resulted in the introduction of 1,000 won notes in 1975. In 1982, the 500 won note was replaced by a coin. The following year, as part of its policy of rationalizing the currency system, the Bank of Korea issued a new set of notes, as well as a new set of coins. Some of the notes' most notable features were distinguishable marks for the blind under the watermark and the addition of machine-readable language in preparation for mechanization of cash handling. They were also printed on better-quality cotton pulp to reduce the production costs by extending their circulation life. To cope with the deregulation of imports of color printers and the increasing use of computers and scanners, modified 5,000 and 10,000 won notes were released between 1994 and 2002 with various new security features, which included color-shifting ink, microprint, segmented metal thread,
moiré, and
EURion constellation. The latest version of the 5,000 and 10,000 won notes are easily identifiable by the copyright information inscribed under the watermark: "" and year of issue on the obverse, "© The Bank of Korea" and year of issue on the reverse. The plates for the 5,000 won notes were produced in Japan, while the ones for the 1,000 and 10,000 won notes were produced by the Korea Minting and Security Printing Corporation. They were all printed in intaglio. ==New security features==