Waldan International Chronometre Chronographe 18k Rose Gold Moonphase Chronograph. The model number of this Waldan is 426. The case is 18k rose gold featuring a blue gloss dial with three subsidiary registers displaying day, date, seconds, and moonphase. The case measures 37mm in diameter. The bracelet is 18k rose gold with a hidden double deployant clasp. There are 13 links present. The caseback is marked "D.F. RIOS 1983-2003 THANK YOU CHRONOMETRE CHRONOGRAPHE 18K 426". The inner caseback is stamped "WALDAN CREATION CHI 750". The rotor is stamped "WALDAN INTERNATIONAL". Total weight : 165.9g. Condition: (Excellent).