And my two 7005-7000 from 1969, white and black.
White one has original rail bracelet, shown in catalogue for both white and black.
Black has solid link Stelux bracelet which is very nice. I think the top endlink is a mismatch however it’s 1mm narrower
The C case on this reference if simple and wears nicely. But I think I prefer the heftier case on the 7006-7000 on my previous post.
Here’s my 4006-6010 from 1970