Vintage Rolex Stainless Steel and 14k Yellow Gold Oyster Perpetual Ladies Strap Watch. The model number of this Rolex is 6621. The case is stainless steel featuring a champagne dial with lume plot hour markers. The case features a 14k yellow gold bezel and measures 24mm in diameter. The caseback is stamped "REGISTERED DESIGN". The case serial is 1495XXX. Condition: (Good).