Would the Explorer be redundant in my collection?

[stark1]

Hi all, I've been thinking about purchasing a 2021 36mm Explorer (124270), but worry that it's a little redundant within my current collection. I realize what I'm debating is subjective and very personal, but I'd still be very much interested to hear what you all think. Here's a quick rundown of my current collection and how they fit my lifestyle/how the are worn.

A couple of things before getting into the watches: I'm not open to replacing any with the Explorer as each piece has sentimental value. I don't frequent formal events and have no need for dressy pieces.

1. Submariner No-Date 114060: my casual do everything watch
2. Omega Speedmaster Sapphire Sandwich: my most casual watch worn only with fun NATO straps.
3. Omega Aqua Terra 38.5mm (Skyfall) Blue: my first "nice" watch and also a do-everything piece. Dress it up, dress it down, it does it all.
4. Grand Seiko SBGA413 Spring (famous pink dial): 40mm in titanium. In terms of looks, probably the dressiest of the bunch - and the only light-colored dial of the four.

I like the new Explorer very much and have tried it on in store previously (so not a blind purchase). However, I worry that it doesn't have a "place" in the current collection for a few reasons, including:
- The 36mm size is unique, but the Aqua Terra kind of fits the bill already. It's not far off.
- The black dial is "covered" by the Sub. So is the oyster bracelet.
- An Explorer is a do-anything go-anywhere watch, but I seem to have a few of those already.

I may be guilty for overthinking this a little, but I am very happy with my current collection; new additions must be weighed and thoroughly considered. Any feedback is appreciated, thanks!