Any ideas on how to open this Breitling caseback?

[Importr]

I've got this cheap and cheerful rep Navitimer that I use as a daily beater, I've got a double AR crystal to put in it but the caseback its tighter than a ducks ass.
Admittedly I tightened it using the jaxa tool to check the original crystal size but now it won't budge!

I've had heat on it,
Had it in the freezer,
Had hot glue and metal rod on the caseback
I've tried using the jaxa tool numerous times with a wooden case holder but it keeps slipping off and scratching it.
I notice there's only one variety of breitling style case opener available at 42mm but it costs way more than I'm willing to pay.

And yes, I am trying to turn anti clockwise!

 

[s.orologiaio]

Bring it to a Breitling AD asking if it’s genuine... maybe they will open it for you to show the movement and then you have solved the problem


Inviato dal mio iPhone utilizzando Tapatalk

 

[Rx4Time]

You need the correct tools. Looks like a giant socket. You can try a sticky ball or duct tape. Do not use that tool you have pictured. You'll scratch the hell out of it and still not have it open.


https://www.ebay.com/itm/Case-Back-...hes-Case-38mm-15-side-case-back-/113783607427

 

[sn95]

You need the correct tools. Looks like a giant socket. You can try a sticky ball or duct tape. Do not use that tool you have pictured. You'll scratch the hell out of it and still not have it open.


https://www.ebay.com/itm/Case-Back-...hes-Case-38mm-15-side-case-back-/113783607427

a good quality sticky ball should work if it's not on too tight.

 

[Importr]

I've already got one of those sockets at 38mm, which is for a normal Navitimer size 41mm case. This is 46mm Navitimer 01 case size which needs a 42mm socket tool. The only one I saw on ebay was 50gbp!
https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.co.uk/ulk/itm/273480044311

You need the correct tools. Looks like a giant socket. You can try a sticky ball or duct tape. Do not use that tool you have pictured. You'll scratch the hell out of it and still not have it open.


https://www.ebay.com/itm/Case-Back-O...-/113783607427

I have the equivalent of a sticky ball already and it's a Bergeon part. The case back is laughing at it.

 

[Importr]

Ah, I've since found that Cousins sell the correct size die for half the price of the ebay one! And it should also be good for my other large Breitlings. Yippee!