I've always been amazed by the vintage builds here, especially the big crown projects, so I picked up a 6536 dial from our Bay seller of the moment.
The 6536 dial was advertised with a diameter of 27.8mm. I don't have a digital caliper so I hope it's about right:
After doing more research post-facto (thank you VRF/Rolexforums), I realize with this dial, I won't get a to do a big crown project after all:
5510 – 26,96mm circa cal.1030 deep 200/660
6536 – 26,98mm circa cal. 1030 deep 100/330
6538 – 27,00mm circa cal 1030 deep 200/660
6536/1 – 27,68mm circa cal 1030 deep 100/330
5508 – 27,69mm circa cal 1530 deep 100/330
So I guess my options are 6536/1 or 5508.
Now a question for our experts - Are there other builds possible with this dial?