In Hong Kong, the MRSP of both watches are similar (about 1.3M HK$).
Just want to know which one you prefer more by spending such a large sum of money?? Personally I MUST take a 5004, so much complicated watch.....
Further, I wonder those who like high technical timepieces really love the diamonds?? To marry a perpertual chrono with a lot of diamonds seems quite contradicting (e.g. 3990 is not a good seller compared with 3970)...Any comment?
Thanks
Addi

For the same amount of money, I will definitely take 5004P. However, 5004P is almost hard to come by. I know one dealer in HK asked 2M HKD few months ago. The grey market dealers even charge much higher. 5971 is such a charistmtic watch and is much better looking than 3990P.

That's my philosophy.
5004 is a fine machine, so is 5970/3970. Adding diamonds is just an aesthetic thing, never adding to its inherent values.
You know my thoughts well, I'll say no more, Addi.
Larry