Jump to content

Smiths stopwatch

antonyh
 Share

Recommended Posts

antonyh WRT Addict

antonyh

Posted
Posted (edited)

I'm hoping that someone will be able to give me the correct sizes for the mainspring for a smiths sw43 stopwatch. 

I have one of my own, like all things I have it's not worth a fortune, but it bugs me that the timekeeping is awful. 

I know it's the mainspring, I just can't find out the size, cousin's don't display the size and the bestfit book does not have it listed. 

Cheers all. 

Tony. 

 

1056049-43bae3a9f5cf7f418a17724493063b88.jpg

Edited by antonyh
watchweasol Distinguished Member

watchweasol

Posted
Posted

Your only recourse will probably to remove and measure the spring. Whether you will get a correct replacement is in the lap of the Gods, you may have to resort to a GR Generale Ressorts . Cousins have a GR catalogue on site. May be worth a look.    cheers 

  • Like 2
antonyh WRT Addict

antonyh

Posted
  • Author
Posted

Thanks, but I'm hoping that someone will be able to help with the correct sizes of the mainspring as it has the wrong one in it. 

Nucejoe Distinguished Member

Nucejoe

Posted
Posted

How do you know its the mainspring, have you openned the barrel and seen its inners? 

I should think hairspring is causing aweful time keeping. 

5 minutes ago, antonyh said:

Thanks, but I'm hoping that someone will be able to help with the correct sizes of the mainspring as it has the wrong one in it. 

Measure dimensions of the barrel, height and diameter.  in general the spring should ocuupy third of the barrel and its lid should close.

 

  • Like 2
jdm Distinguished Member

jdm

Posted
Posted
14 minutes ago, antonyh said:

I'm hoping that someone will be able to help with the correct sizes of the mainspring as it has the wrong one in it. 

I believe watchweasol and Nucejoe gave you the correct advice above. I don't know if the GR catalogue covers your piece but even if it does not the due diligence would be to search for a compatible mainspring based on the measurements you can take first hand. Cousins UK has a search facility for that. 

JohnR725 Distinguished Member

JohnR725

Posted
Posted
12 hours ago, antonyh said:

the timekeeping is awful. 

I know it's the mainspring, I just can't find out the size

why do you think the main spring is affecting the timekeeping?

 

8 hours ago, antonyh said:

Thanks, but I'm hoping that someone will be able to help with the correct sizes of the mainspring as it has the wrong one in it. 

one of the problems with finding mainsprings is it be nice if we had a picture of the movement itself. It's pretty generic to search for Smith's stopwatch mainspring unless of course they only made one of these?.

  • Like 1
antonyh WRT Addict

antonyh

Posted
  • Author
Posted (edited)
On 7/3/2021 at 4:19 PM, antonyh said:

cousin's don't display the size and the bestfit book does not have it listed. 

 

I have managed to get one at last, for my sw43 and the difference with the correct size spring is quite amazing, oddly enough I had one in my box of Mainsprings. 

IMG_20210704_162006.jpg

Edited by antonyh
 Share
Go to topic listing

  • Recently Browsing

    • No registered users viewing this page.

  • Topics

  • Posts

    • Mark
      Ad Free WRT

      By Mark · Posted

      That’s a nice idea, But i’m committed to providing this site as a gift to the watch repair community as my thank you for my incredible life i’ve had in this business. Ive done well and unless my financial circumstances change then i’m more than happy to foot the bill. If circumstances do change then be assured that I will make an appeal. For now, I’m comfortable with the way things are and I am extremely delighted to remove Google Ads from this site and to stop Patreon, it feels like a major step forward 🙂 Sorry, I missed your reply, I got blinded by another poster in this thread. Yes - I can confirm that I have always seen WRT as a not-for-profit website, and therefore - not a business as such. I’m lucky and have done well in my life due to a decision made in my teens to start a watch repairing apprenticeship which has sustained myself and my family for many years now. Consider this my small way of paying it forward. Ive been committed to keeping the site alive on a technical and financial level for over 10 years now and I have zero plans to change that. Thank you for your kind words by the way. And as for your wish - nobody can control what happens in life, if something happens to me I have things in place with my family but I’m just not comfortable talking about my personal business - I wish a certain person would respect that, but i’ve calmed down now - i’m only human 😄  
    • Tackleberry
      Timex Camper T41711 Crystal

      By Tackleberry · Posted

      Yes, exactly. I've seen a few different versions, but mine has the blue water symbol, not white.    I think it's Acrylic. The case is plastic so I would the is the lens would be too.
    • Nucejoe
      Watch Enthusiast from South Orange, NJ

      By Nucejoe · Posted

      Hi there Josh, welcome to the forum.
    • mbwatch
      Phinney Walker Mickey Mouse Watch HELP

      By mbwatch · Posted

      From the same listing, the back side: I would guess that the back pops off rather than the front. You can see a little groove there where the caseback sits over the winding stem, rather than a case tube. Look for an indent or notch around the back. It might be possible to pry this off from almost anywhere on the back if it sits right against the rubber strap. The movement looks like it is from the Ronda RL family (015 or 115 or something? I forget which numbers have a calendar and which don't)
    • AndyGSi
      Phinney Walker Mickey Mouse Watch HELP

      By AndyGSi · Posted

      I'd expect a similar notch somewhere around the rear to pop that off.
×
×
  • Create New...