a total of only 179 examples of 2438 and 2497 were produced. the majority cased in yellow gold and only 6 pieces known as pink gold. ref.2438/1 is generally devided into two different series:
-the 1st with applied Arabic numerals and dauphine hands
-the 2nd with applied baton numerals and dauphine hands
i do not think there is no platinum or white gold 2438 though two were made in platinum for 2497.
john