Any radium detected on 105.003-63 ed-white?

No Ed White has Radium lume. They all had Tritium. The last straight lug Speedy with Radium would be at the end of the 2998 series. 2998-61 or -62 perhaps. Note many Omega watches were manufactured a year or more after their iteration code. The Ed -63 you refer to for instance was likely produced in 1964 or even 1965. Check the serial at Ilovemyspeedmaster.com and you’ll see what I mean. Radium was binned around 1962 at the latest.

There was a transition period where Omega changed to Tritium lume across the range but used no T marks for about a year (roughly 1962-‘63). You never see T’s on a Radium dial.

Depending on how good your detector is, Tritium lume may still show above background since it will still have about 1/16 to 1/32 the activity of when new. That said the beta from Tritium is not powerful and hard to detect.