In 2004, the kingdom of Thailand celebrated the happy sixth cycle anniversary of Her Majesty, Queen Sirikit.

Carl F. Bucherer received the great honour of creating a one-off diamond-studded wristwatch for Her Royal Highness. A total of 354 diamonds (totalling 6.43 ct) and 282 rubies (totalling 7.25 ct) adorned this breathtaking piece of jewellery.