Everything U would like to know about Prim

[mmmara]

Well I would like to welcome everybody from english speaking world who is interested in Prim watches. Hereby I´d like to announce, that I am ready to find out a answer all your questions, if it is in my powers

Upraveno 21. července 2008 uživatelem mmmara

[mmmara]

There is a new model out there called Diplomat 40.

[lib]

Well I would like to welcome everybody from english speaking world who is interested in Prim watches. Hereby I´d like to announce, that I am ready to find out a answer all your questions, if it is in my powers

 

You should have posted the link: PRIM

Otherwise many of those interested in PRIM watches of Czech origin might be redirected to the low-quality Chinese Prim producers or rather cheaters.

Upraveno 26. července 2008 uživatelem lib

[Micky]

Hello there.

I would like to ask what the differences are between the "1st Gen" Sport 1 divers watch and the other Sport 1 models,please?

Thank you in advance

micky

[Dushan Grujich]

Well I would like to welcome everybody from english speaking world who is interested in Prim watches. Hereby I´d like to announce, that I am ready to find out a answer all your questions, if it is in my powers

G'Day !

 

Well, I have a question, it is regarding the PRIM cal 684 (? 68.4 not quite sure, as the marking on the movement is not quite clear).

 

Namely, I need information about the balance staff, either the replacement equivalent from Ronda or the actual sizes so that I can find an equivalent or if none then to turn a new one. The staff is shockproof KIF S.

 

Thanks in advance!

 

Cheers

 

Dushan

Upraveno 13. srpna 2016 uživatelem Dushan Grujich

[Dushan Grujich]

G'Day!

 

I have once again closely examined balance of the 684 movement, and have noticed that the balance staff is friction fit. Thus I removed the balance spring, roller and the balance staff with a broken upper pivot. Next thing was to measure the staff as accurately as possible. To measure it I used the JKA bench dial micrometer and my Srb a Štys measuring microscope. The results of the measurement are given below in a drawing of the balance staff in hundredths of a millimetre. 

 

Unless I can find a similar staff which can be modified to suit I shall have to turn a new one from scratch.

 

Cheers

 

Dushan

 

 

[Dushan Grujich]

G'Day!

 

To conclude. Unfortunately, there were no luck in finding similar balance staff, thus I had to resort to turning a new one from scratch. The watch with the prim 684 movement is now working as it did when it was new.

 

Cheers

 

Dushan