I'd like to add to this wish list, even though it has nothing to do with these early subs. Can you make an open 6&9 date wheel overlay? Maybe one withe round 3's and one with flat 3's and have the numbers progress in the direction of an ETA movement? I think there would be a demand for these.
Get a watch hand broaching vise like this
https://www.cousinsuk.com/product/hand-holding-watch
And get some watch hand broaches like this
https://www.cousinsuk.com/product/0045-to-140mm-german?code=B36682
You can check the hole size with this
https://www.cousinsuk.com/product/hand-gauge?code=G0698
There are some some very talented mod/repair people sharing their services here on RWG. They can make you a spacer or drill your lugholes.
https://rwg.cc/forum/179-repairmodification-services/
Here is a post from Neckyzips showing some of the work he is capable of.
I don't know which factory makes the best Datejust for the money. You can check the watches available from RWG's trusted dealers and see if any look good to you.
This is where you will find the trusted dealers at RWG
https://rwg.cc/forum/230-watches-clothing-parts-accessories/
Here is a link to Trusty Time's inventory of Datejust 41mm
https://trustytime.shop/index.php?main_page=index&cPath=1_294
You can contact Misiekped here
https://rwg.cc/profile/4649-misiekped/
And Mymanmatt here
https://rwg.cc/profile/43828-mymanmatt/
And Rionrity here
https://rwg.cc/profile/51783-rionrlty/
Here is a list of repair services at RWG
https://rwg.cc/forum/179-repairmodification-services/
In the US, your best bet is to contact Misiekped or Rionrity.
Trustytime is one of RWG's trusted dealers. You can find him in the list of trusted dealers here:
https://rwg.cc/forum/230-watches-clothing-parts-accessories/
Your watch would originally have come with a 700 crown. During servicing through the years it would have been changed to the latest version. So, if your watch was serviced in the 70's, a 702 crown would be correct.
When Rolojack would post pictures of his builds, he would describe machining the case to make it thinner and opening the dial window. This might be why the rehaut looks different from a stock MBW.
Well, Mattjames84's case may be a cartel case. Here is a Rolojack pictorial about making a pointed crown guard 5513. It looks to be op's watch in the making. At least the hour hand seems to be the same.
They're gone. I just called the phone number listed when you go to check out. Natalie answered and said "sorry, I don't sell any more. I haven't sold for years". Odd that the web site is still up.
I emailed them to get a price on a case and got no response. They do list a phone number. I was going to call it, but haven't yet. That would be too bad if they aren't selling parts. With shipping delays the way they are, I was going to purchase some items from them and get them quicker.