Jump to content

As 1916 Movement

Scottster

By Scottster
in Watch Repairs Help & Advice

 Share

Recommended Posts

Scottster Member

Scottster

Posted
Posted

Hello all. This is my first post. I got into watches last year. I have serviced several movements in the last few months. I learn something new with every one. I started with several ETA movements: 2801, 2824, 2836. Then I did several Tissot movements: 794 (3), and I just got a 796 that I haven't started on yet.

I am working on an AS 1916 that I got out of an old Carravelle. I am having trouble getting it to work. I cleaned and serviced it but the minute and hour hands won't move. I assume it is the large driving wheel or large offset wheel and pinion depending on who describes the part.

Any clues on how to proceed? Any chance of getting a new part?

Thanks.

  • Like 1
Marc Distinguished Member

Marc

Posted
Posted

Hi Scottster, welcome to the forum.

 

If you have got the watch running and the seconds hand is moving, but the hour and minute hands are not then the first thing to check is the canon pinion. 

try pulling the crown out to the setting position and see how easy it is to set the hands. If they move too freely then this would also point to a loose canon pinion, in which case you should be able to tighten pinion (carefully, and in tiny steps until it's right as it's difficult to rectify if you go too far) and restore the proper drive to the hour and minute hands.

  • Like 1
Lawson Super WRT Addict

Lawson

Posted
Posted

Hi Scottster, welcome to the forum.

 

If you have got the watch running and the seconds hand is moving, but the hour and minute hands are not then the first thing to check is the canon pinion. 

try pulling the crown out to the setting position and see how easy it is to set the hands. If they move too freely then this would also point to a loose canon pinion, in which case you should be able to tighten pinion (carefully, and in tiny steps until it's right as it's difficult to rectify if you go too far) and restore the proper drive to the hour and minute hands.

 

Hi Scottster and welcome to the forum :)

 

From the information you've given Marc is spot on.  Tightening the canon is easy to get wrong, so as he suggested do it gently and in steps for your first attempt.

Don't panic however that all is lost if you go too far with it ... spares for AS movements are still easy to get from Old Swiss Watches, and Sudarson will offer you the right part for the right price ... highly recommended.

 

Remember, we only learn by doing ... and some of the best lessons come from our mistakes.

  • Like 2
Geo Distinguished Member

Geo

Posted
Posted

Welcome to the forum Scottster, you've been given good info by Marc. I hope you continue to participate and post some work that you have been doing. :)

Scottster Member

Scottster

Posted
  • Author
Posted

Thanks for the help. I will try to adjust the pinion and see how it goes. I will also see about getting a new part as well. Thanks for the help with the parts supplier.

jnash Super WRT Addict

jnash

Posted
Posted

ive got this problem on the as 1906, seems to be common with these, tighten the cannon pinion and all will be good.. if this is the case you can prob see that the hand moving is too loose..

  • Like 1
Scottster Member

Scottster

Posted
  • Author
Posted

Hi Scottster and welcome to the forum :)

 

From the information you've given Marc is spot on.  Tightening the canon is easy to get wrong, so as he suggested do it gently and in steps for your first attempt.

Don't panic however that all is lost if you go too far with it ... spares for AS movements are still easy to get from Old Swiss Watches, and Sudarson will offer you the right part for the right price ... highly recommended.

 

Remember, we only learn by doing ... and some of the best lessons come from our mistakes.

Great advice. I figure if there is a way to screw it up I will. I contacted Sundarson and he had all the parts I need. He also had the parts for an AS 1803 I am having the same problem with. I can't wait to get them so I can get the Caravelle running properly.

Thanks for the advice.

 Share
Go to topic listing

  • Recently Browsing

    • No registered users viewing this page.

  • Topics

  • Posts

    • HectorLooi
      Hour hand won’t go past certain spot when adjusting time forwards

      By HectorLooi · Posted

      If the watch is new, just return it to the seller for a refund or replacement.
    • Randy55
      Hour hand won’t go past certain spot when adjusting time forwards

      By Randy55 · Posted

      Keevo, Welcome to the group ! I'm thinking that you have some damage to the hour, and/ or minute wheel. Possibly just a bent, otherwise damaged, or missing tooth.   Your photo didn't post that I can see. I think you'll have to open it to start really finding the issue. Best, Randy
    • Neverenoughwatches
      Diy rotary cleaning machine

      By Neverenoughwatches · Posted

      An industrial break cleaner , like Holts does a good job of rinsing off paraffin 
    • mikepilk
      Cap jewel with what looks like a circular engraving around the edge

      By mikepilk · Posted

      In cap jewels on several watches I have serviced over the years. I've recently serviced a couple of Longines movements where the cap jewels were colourless. They are a real pain. Without colour they disappear when immersed in any liquid for cleaning 😲 Not necessarily. Cousins do a 10ml bottle for £26 which will last me for years. That's just half the price of a simple Bergeon silicone cushion, so not too expensive 🤣
    • BobG
      Etachron regulation system

      By BobG · Posted

      I wanted to post an update as I have two movements running really well now, 230-250 amplitude , 0.5 and under beat error, and +/-8 seconds or so. I removed the hairspring assembly in order to start over and noticed that the terminal curve between the stud and regulator arm was distorted. The stud was lower than it should be. I massaged the curve to look pretty good and reinstalled it. I followed Alex's video advice, best I could with 10x magnification, and with the regulator arm set in the middle of the curve I adjusted the stud so the spring was centered. I then made sure I could move the regulator arm the entire terminal curve without upsetting the coils. I then put it back on the Timegrapher and began closing down the regulator pins until I saw a change in amplitude which means to me that the pins were now pinching the spring. I opened them slightly and it looks good except I have a 0 on dial down, +3 on dial up but -16 on crown down.  I'm a bit stuck on how to adjust out the positional error. I also noticed a drop in amplitude, 180-200 on crown down. In the other video link I posted at about minute 26 if I remember he adjusts out positional error by manipulating  the regulator pin gap. With crown down the hairspring falls away from the pin and the rate slows so he closes the pins a bit to keep them tighter in crown down position. That means the spring is tighter on dial up as well but then he moved the regulator arm to slow the movement.  There must be some Seiko experts here that have some methods for dialing out positional errors. 
×
×
  • Create New...