written on the coil is 30-100w ohms, it has a white band accross the bottom if that helps?
Only going by the link provided above, they have "0.5 Ω: rated by eleaf from 30 to 100W" and it seems to be Kanthal A1.
Order up that Notch Coil in SS316L. I think it sounds interesting.
I like your device. Always wanted to have a 26650/18650 mod. Might be useful. The 26650 might have a tad bit more staying power over the length of a day.