Comments:
3800 is navy dial, 5065 is black
This 3800/1J originally had a white dial called ”ceramic", but I purchased a navy dial separately and installed it. I think the 3800j with a black calendar disc is rare.
The clasp is not a J type for ease of use (durability) reasons.
I feel that it has a different quality to the clasp on the 5711.
Add the 5711R to complete the trio of the gold bracelet models.
The hands and indexes seem a little thin.
I got a Nautilus 3800/1J, so I paired it with an Aquanaut 5065/1J. When I line them up like this, I can see how compact the 3800 is.
3800 is navy dial, 5065 is black
This 3800/1J originally had a white dial called ”ceramic", but I purchased a navy dial separately and installed it. I think the 3800j with a black calendar disc is rare.
The clasp is not a J type for ease of use (durability) reasons.
I feel that it has a different quality to the clasp on the 5711.
Add the 5711R to complete the trio of the gold bracelet models.
Sublime!
All 3 are great watches but the 3800/1J is the standout in my opinion. A dream! Enjoy it 😊
Congratulations Shun san in getting the 3800J ! Great photo of having the Nautilus and Aquanaut
side by side to compare and contrast them: very similar and yet so different 
The yellow gold of the 3800 also looks very different than the 5065. What is their age difference ?
The 3800/1J was released earlier (1981?), and was sold for a long time after that. The 5065 was released in 1998, right?
5065J for me. Its quirky elements elevate it to the sublime. The bracelet included.
It is a masterpiece. Much better than the Nautilus for me of all versions I’ve seen. But 5167 and the other newer Aquanauts lack the charm. Your collection is off the charts amazing. It’s such a privilege to enjoy your posting along with all the other amazing members here.
LOL. You are far too humble. If I understand correctly you are Japanese.
よろしくお願いします。続けて教えてください。
Congratulations on your 3800J
This is really special watch and also
Black dial calendar makes it more interesting!
Omedetougozaimasu
Black dial calendar makes it more interesting!
Omedetougozaimasu
3800J
Nice watches. How did you purchase the Navy Blue dial separately? Did your white ceramic dial come with the black calendar date wheel?
Originally, I wanted a 3800J with a blue dial (black calendar disc), but I couldn't find one in good condition. At that time, I found a beautiful ceramic dial and a blue dial (from the same era) for sale, so I bought them and replaced them.
Here is a photo of the original state before replacing it with the blue dial.
The hands and indexes seem a little thin.
Beautiful watch and thank you for sharing these nice images.
Recently I have been checking 3800J/3 Nautilus quite a bit..... unfortunately I've never had a chance to try 3800 on my wrist in person.
I do own 5065 on strap (and bracelet) and the watch is about perfect size to my eyes on my 6.75" (cca 17cm) wrist. Actually purchased it just very recently and did not even get a chance to put the bracelet on.... but I digress.
The watch looks perfect on you. Would you please mind to share the size of your wrist. Also would like to hear your opinion as how the 3800 overall feels to your eyes when comparing to 5065.
Thank you kindly in advance. Miloš
I do own 5065 on strap (and bracelet) and the watch is about perfect size to my eyes on my 6.75" (cca 17cm) wrist. Actually purchased it just very recently and did not even get a chance to put the bracelet on.... but I digress.
The watch looks perfect on you. Would you please mind to share the size of your wrist. Also would like to hear your opinion as how the 3800 overall feels to your eyes when comparing to 5065.
Thank you kindly in advance. Miloš
Your 3800 is simply gorgeous 🤤🤤🤤
What I nice project you have completed, enjoy it in the best health!