Jump to content

Watch hand tube height measurement correct ?


Mamo

Recommended Posts

Hi everybody.

 

Ti got my hand on a Miyota 9015 for the first time because the second hand was lying in the case.

 

Sadly the pin from the second wheel is stuck in the hand so I need to get a new hand.

 

I always order my parts at Boley and I also wanted to this time.

 

But they only have a tube height up to 0.7mm.

 

I got 2.4mm on my second hand. Did I measure correct ?

 

Also the diameter of the Miyota 9015 is 0.17mm. I only can find 0.16 and 0.18mm.

Should I go wider or smaller ?

Where could I find such a height hand?

 

f57d21d685f2248e0a3f1c72d288be4f.png

 

Thank you very much I’m happy to learn something new [emoji4]

Link to comment
Share on other sites



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • A better solution than having a list that will be compromised for spam would be to have a contact email. In other words an emergency email or even for that matter as separate website for emergency use as opposed to we all list out our names and emails and get spammed to death as there would be almost no way to protect that from bad people.
    • Thanks for the various replies. Here are answers to some of the questions/suggestions  switching the winding shafts doesn’t work because the no7 I need is significantly larger than the bore of the no6. i do have a set of chinese winders too, but as noted they’re movement specific and none fit the bill here.  I don’t want to replace the mainspring a)because I like to keep things as original as possible and b)where I live it’s tough to import parts so i have to wait long periods between supplies   so in conclusion I expect to be handwinding the spring this weekend 
    • From the photo the pallet arm looks as if it has been tampered with the edges are not nice and straight this can cause problems on the banking pins. 
    • Update, I discovered that I could change the mainspring by removing the arbor and sliding it out from between the front and back plates. So I put a new mainspring in. This it what I  get over a 7 day period After winding                                          amplitude is 1 1/2 turns plus a few degrees.                                                                        ie just over 1 1/2 turns. 1 day after winding     gained 1 sec      no amplitude check. 2 days after winding   gained 1 sec      amplitude 1 1/2 turns                                                                                                              i.e. it lost the few extra degrees 3 days afer winding    gained 3 sec     no amplitude check 4 days after winding   gained 5 sec     amplitude 1 1/2 turns                                                                                                               i.e. unchanged 5 days after winding   gained 7 sec     no amplitude check 6 days after winding   gained 16sec    amplitude just over 1 1/4 turns 7 days after winding   gained 24sec   amplitude 1 1/4 turns. From  Based on video inspection, I am getting full pallet lock. So, my data seems to be at odds with the statement "swing of a balance wheel has nothing to do with the rate". However, I have noticed the banking posts are not controlling the lever position on the right side.  I may have some work to do here.
    • I can't tell whether or not some stem is stuck in the crown, I  think so though.  If the crown is stainless steel you could try alum to disolve the stem of try drilling it out. If all else fails, buy a new crown. 
×
×
  • Create New...