I'm not big expert,
but without modding nothing on the watch you can:
Vintage
- 1665 MBW and 1680 MBW = (accept Gen. Crystal, Crystal reataining ring, bezel, insert and case back; for tube and crown need modding )
Modern :
- WM9 Z-16610 = (accept Gen. Crystal, bezel , insert , retaining crystal ring, case back, tube and crown )
- SSD 16600 = (accept Gen. insert and crown; for tube light modding is needed )