In my case, people usually don't care about my watches, but when I wear the MTG B2000 Rainbow mountain, people look at it and ask due to it's colorful design and special bezel with layers of carbon fiber and glass fiber in different colours, who creates a very original and attractive effect.

I'm also fan of crowns at 4 o'clock:

They give more freedom to move your hand, avoiding discomfort and hurt on the back of the hand.

They are the most natural and easy way to reach and operate the crown when the watch is on the wrist.

That's why, from functional point of view, I think is the best and they are applied in watches were the functionality and mobility of the user are very important (e.g. many Seiko's and Citizen's Dive watches).

I have two watches like this: Seiko Turtle and Seiko Baby Tuna.

Anyway I have many others with "standard" 3 o'clock crowns. Some of them I don't wear so much, because riding my motorbike or bicycle, when my wrist is in a extrem position, the crown makes pressure on the back of my hand and they are not comfortable.

I also have a "bullhead" that it is great for comfort but not that easy to operate on wrist. 

We should be open minded and we can see that there are great pieces independently of the crowns and buttons locations.

Agree with you.

The benefit vs the cost (real and marketing wise) of add a good Lume on watches is not comparable. As some already told, the dive watches are on the best level due to their need when using under the water. I have two Seiko Prospex and they have the best Lumes of my collection. I really don't Dive but I appreciate the ability to read the hour on dark places. In addition is very cool!

Completely agree with you. I have the same situation. My Casio, Citizen and Seiko quartz watches are usually the most of times on my wrist instead high end / mechanical watches. They are precise, reliable, easy and cheap to maintain. Some of them solar powered and radio controlled don't need any care at all. Anyway I still appreciate the craftsmanship, sound and mechanical complexity of the mechanical watches. The seconds hands sweep it's also special on them. Anyway I fully agree that for someone who needs a practical and reliable watch, quartz it's definitely the option where the mechanical ones are for enthusiasts. We will find great watches independently of the technology and I'm not closed to any of them. I have Seikos Prospex almost the same watch, in Solar and automatic and I enjoy both in the same way. 

Good to know! Is better to have feedback from a current user than official specs than they change in positive or negatively. Maybe my next timepiece... Thanks and enjoy that masterpiece!

Yes they are different technologies. The GS spring with an average accuracy of +-1 second/day is awesome for a mechanical watch! A masterpiece! For sure a good quartz will have advantage accuracy wise. I'll check at long term the Certina if after some months have any second of deviation, but for this I'll will have the answer in some months.

An interesting explanation why the GS is so good compared with other mechanical watches:

https://www.prestigetime.com/blog/grand-seiko-spring-drive-review.html#:~:text=How%20Accurate%20is%20a%20Grand,than%20a%20COSC%20certified%20Chronometer.

Cheers!

Fortunately the six atomic radio controlled doesn't need any setup and the two G-Steel just Bluetooth pairing, but anyway still 16 watches to setup!