This is a very good Rolex vintage Prince ref.3937 in 14k yellow gold. Manufactured in 1937 for the Canadian ?Eaton" company" in order to commemorate the 25th year of employment. The so called 1/4 Century Club watches have special dials with its name instead of numerals. All authentic piece! Legendary collectors item and so called "doctors watch"! Very beautiful and fine gentleman´s gold Rolex from the pre-Oyster time.