Jump to content

Recommended Posts

34 minutes ago, Neverenoughwatches said:

Perfect chief i had already found it, but i just wanted you to put the work in 😉

17148184559312033903829113829731.jpg

20240504_111650.jpg

Screenshot_20240504-113200_Samsung Internet.jpg

That's brilliant! What a great set of books they are! Thanks for that. Another quick question. I've noticed on the second picture of the movement on the data sheet there is some sort of spring held down with a screw towards the bottom left. However in the fourth pic the spring isn't there. My movement doesn't have that spring or screw. Are those pics fully assembled and just different types or is it missing?

Link to comment
Share on other sites

1 hour ago, Chief said:

That's brilliant! What a great set of books they are! Thanks for that. Another quick question. I've noticed on the second picture of the movement on the data sheet there is some sort of spring held down with a screw towards the bottom left. However in the fourth pic the spring isn't there. My movement doesn't have that spring or screw. Are those pics fully assembled and just different types or is it missing?

Those movements are submitted by anyone as far as i know, folk that helped to build the database for Ranfft.  Those 4 pictures show 2 different variations or possibly families of caliber. Notice the two different bridges. But the set and wind are the same design, the spring is the click spring, these are common on oris movements. So that spring and screw on the last picture is missing as i think so is yours sorry. 

Link to comment
Share on other sites

6 minutes ago, RichardHarris123 said:

I'm confused, I  can see the click in the usual position next to the ratchet wheel. Surely the click spring is there? 

You're  right Rich on the op's first picture there does appear to be a spring popping out under the ratchet wheel, wonder why its not on the dial side ?

  • Like 1
Link to comment
Share on other sites

51 minutes ago, Neverenoughwatches said:

Maybe so, there looks like a piece of spring under your ratchet wheel.

Yeah there is a spring under there. Hopefully now I can source a screw for the click and the bridges! Thanks for your help!

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • I've also heard it called the "top side" and the dial side the "bottom side", which should make any non-repairer very confused. There are many examples and sometimes it comes down to personal preference. Personally, I like to say "dial train" whereas most other people would use the term "motion works".
    • Is magnetism such a major problem that we (as home hobbyists) need to spend $$$ on a fancy demagnetiser? I use one of the cheap blue Chinese demagnetisers (£10 from ebay). It works, and has never failed to demagnetise a movement, or my screwdrivers. Magnetometer - who needs one?  Take a very small screw. If it sticks to the clean part, it is magnetised 🤣
    • My overall preference is to use traditional names and terms, that became my habit when i was taught joinery by old boy chippies 2 generations older than me , that had their time in the 40's. But what i often do is adjust the names and terms i use according to who I'm talking with. Sometimes i will say trainside and occasionally watchmaker's side. I try to find a balance between accommodating other folk ( there's no point speaking a foreign language to someone who doesn't understand it ) and using a name that appears to me to be more relevant as to its use or description. But using the name lever can be quite confusing,  some watches might have parts that are also levers, release levers, which in effect is what the pallet fork is, an escapement release lever. 
    • Then put the case number in here https://www.cousinsuk.com/category/filter/search-seiko-case-parts and it should give you the crown 
    • I come across to replace the crystal of a 7734 chronograph.  What make it special there a printed chapter ring  which fits inside the recess of crystal before inserting into the case. I am thinking of a high dome crystal such as Sternkreuz ATCH, fitting diameter OD332/ID320.  For this purpose, tension ring will be removed and fit in the chapter ring.  I understand the crystal size may not perfectly fit these two dimension.  Should aim to find the right ID, then OD can be grinded to reduce without much difficulty.  To find the right crystal, the easiest way is to get know of the OD/ID relationship of Sternkreuz ATCH/ATCG (otherwise the OD of the crystal and tension ring).  I hope you are able to help to minimize the trial and errors.
×
×
  • Create New...