Jump to content

Clock hand matching


dnhb

Recommended Posts

I have a French 8-day clock (see my "charity shop purchase" topic) with just an hour hand. I'm considering  - as a learning opportunity- making a minute hand to match it. I'm thinking its form could be derived from the hour hand by proportionally(?!) extending the latter's outline as a first step. But are there any rules of thumb which relate the size & shape of a minute hand to a given hour hand which would help in refining such an initial outline ?

Link to comment
Share on other sites

I have just looked at the charity shop purchase" topic. The hour hand is the style spade very popular. You need the length  to be just inside the outer line of the minute line on your clock dial.

 

  • Like 1
  • Thanks 1
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

    • Thank you all for your informations. I will do as suggested. Return the pin to its original position. Replace the pallet fork. I have ordered the correct 6498 movement. I will install the new movement and finish the pocket watch.  I will return both, the pocket watch and the old movement to the owner. I do apologise to you all. It is obvious to me that I have not learned or understood the skills correctly.
    • This looks like a Seiko mainspring barrel, I am sure there are many you tube videos out there showing how to open those and I'm pretty sure it will be the same technique (see below about 7 mins in). @clockboy I see what you are saying, but agree it's hard to tell if its damage/dirt or a trick of the light.  
    • Hello everyone,  I recently acquired a watch that I've long considered a "grail". A JLC Memovox. Specifically, the reference E875 ("Speed Beat") with a calibre 916. I got it for really good price and it is in full original condition.  It's still running quite well, but I do want to service it.  I found the service manual online (attached) and it seems to be doable. JLC 916.pdf But I'd still be grateful for any tips!!  One specific question I have is related to the mainspring barrel. The manual says that the barrel "should never be opened. In case of defect, replace the whole barrel assembly".  Now, I've opened "do not open"-barrels before and reused them with no problems. And there are other threads discussing this matter in a more general way. But I'd be very grateful if anyone had specific knowledge of this movement or other JLC movements from the 1970s.  Obviously, it's impossible to source a NOS barrel complete for this movement (and even if, the breaking grease and arbor lubrication would not be in good condition anymore).  So I'm left with only two options: open the barrel as usual or just leave it closed and reuse. (Well, or I pay 4-digit service costs at JLC/Richmond group.)  
    • Welcome, you might want to look into the Sherline  lathes  also,  I believe they come in standard and metric, good luck with those movements....
    • I've never had a pin pallet escapement. Do you expect to a similar amplitude to Swiss lever?
×
×
  • Create New...