Well the Omega vintage database says that it's radium. As for going black, it could also be moisture intrusion. The Navitimers I have had or held have lume that go black like that from moisture. Good thing it looks like the moisture damage was limited to the dial. I should not push my luck, better send it to the watchmaker ASAP for the works
Very nice, I don't recall seeing leaf hands on the sub-dials for these early Seamasters. At the risk of being rude, ballpark on the value/cost?
One sold at auction in 2011 for $1875. https://www.christies.com/lotfinder...onograph-wristwatch-with-5517784-details.aspx Better condition at auction so this is less right? Lol Although... the auction one feels like a service dial. Amazing how these have appreciated.