Shot of my Vulcain Cricket in the soft glow of energy saving bulbs The RA is for radium so a an early sixties watch. I didn't notice this until a few years after buying it - it's all about the small details. Cheers JML ...
Did a quick search & one of links suggested that by 70s its use had stopped. Only realised that watch was likely to have radium dial when noticed the RA either side of the Swiss Made and tried to find out what it meant. Cheers JML