Here are some Rolex and Bulova ads from the 60’s. I believe they were found on magazines printed in Singapore during the 60’s.
The first Rolex ad was probably a generic ad but second one was clearly a Singapore ad because it had the Singapore dealer’s name on it.
The Bulova Accutron ad was also a Singapore ad as it claimed that price of the Accutron in Singapore was lowest compared to UK, Australia, Japan and the States.
The NAAFI establishment and Accutron agent, Jardine Waugh were no longer operating in Singapore. They were long before Hour Glass, Sincere Watch and Cortina.
Click on any image to see full size scan