Mine is at the watch maker being serviced and assembled. I was lucky to find a complete NDT 1655 on the forum for $1,100. I added a gen service bezel $700. Gen hour, minute, second hands $300 (if you can find a gen 24 hr hand in decent condition, plan of paying $300 for it alone). Gen crown/tube $100. Gen crystal $90 and a gen bracelet $600.
I have about $2900 + plus the cost of the service in mine. I got lucky. The movement is a gen GMT, not converted. I am happy with the NDT dial, but as Automatico said, if you go for a gen dial, figure $1000 or more. Is it worth it? Who knows. It's my grail watch and my 50th birthday present from me to me. I didn't have $15k lying around, so this was the next best thing