The Corum Coin Watch made for the Sultanate of Oman is a rare and highly personalized timepiece, custom-commissioned for the Omani royal court and featuring the country's distinctive national emblem, the Khanjar dagger and crossed swords. This unique version of the classic Corum Coin Watch utilizes a genuine gold Omani coin for the dial and caseback, often a ½ Omani Rial coin, and is housed in an 18k yellow gold case. The specific "H.S. Othman" model likely refers to an even more exclusive variant that includes a diamond-set bezel and possibly a diamond-set crown, elevating it to a high-jewelry collector's piece that commemorates the partnership between Corum and Oman.