Seems to appear fairly regularly on crickets from 60s [nt]

Jan 26, 2020,11:25 AM
 

No message body

  login to reply

Comments: view entire thread

 

Radium glow

 
 By: jml_watches : January 25th, 2020-14:48
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 ...  

From what I've been able to find out yes, but was being phased out.

 
 By: jml_watches : January 27th, 2020-13:53
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