Vacheron Constantin’s history of coin watches (either as pocket watches or wristwatches) dates back to around 1850 when the Geneva brand received a special order for the execution of a watch within a Russian coin. Even though these timepieces are called “coin watches” Vacheron Constantin in fact used two identical coins hollowing them out and placing within an extra slim movement. The present lot was a special order from the Royal court of Iran and made in 1970, most probably to be gifted to foreign dignitaries and Iranian officials. The gold coin features Mohammad-Reza Pahlavi - the last Shah of Iran - and commemorates the Iranian “White Revolution”: a series of reforms put in place from 1963 to 1978 that included the enfranchisement of women, land reform and the formation of a literacy corps. The present lot will surely appeal not only to the savvy collector looking for a rare and fascinating horological curiosity, but also to the connoisseur interested in Persian history.