*Should say, bought a 40 year old watch*
Picked up an Omega Geneve Dynamic from eBay last month and only got it back from the shop (had the crystal and crown replaced as they looked a bit tired). I was playing with the lume on my speedmaster and railmaster in my watch box, turned the light off and a watch produced in 1973's lume still works! Unbelieveable! Has anyone ever found this before?
Here's a photo I took of it whilst out visiting a customer: