Explorer I to collection?

[courboy]

My collection currently consists of:

- Sea dweller 43 126600
- Vacheron overseas dual time black dial
- Lange & Sohne Saxonia thin rose gold
- Gerard Perregaux laureato 42 grey dial

I keep listing after the explorer, but wonder if it’s just another black dial in a collection with two black dials already. I know on paper I should get a blue/white/green DJ to add more diversity, but the explorer I is the one watch I really regret selling years ago. The 36mm also provides a nice change in what is a larger watch collection (Lange aside).

I am considering changing the VC for the silver dial variant, so I guess the question is more: are the SD and explorer I too similar by being black dial Rolex sports watches?

All advice welcome.