Jump to content

Recommended Posts

Posted

H,

has anyone had experience of these type oyster spring loaded pins (not spring bars)?

connects the bracelet to the shoulder link, consist of a tube through the middle link with a spring inside, then two small caps either end that slot into the smaller outside links. These are very worn with far too much play but can’t seem to find them anywhere or an instant solution

TIA

 

2278E3A1-231A-40BE-AB29-C234FCDB094D.jpeg

Posted (edited)

I think that is actually one springbar pin for the links in the bracelet and they are a bit smaller than the springbar pins for the cover which you see at the Cousines link.
To know exactly which spring bar you need you have to look in the clasp or on a marked link which model of bracelet you have.
As an example the 78351-19 have two sizes of these link spring pins.

490356583_Link_Spring_Pins.png.b01d72a8ab41641f2649bc5c18981d44.png

Then if you are not affiliated with Rolex you need to get it from a third part supplier like this.
https://www.everestbands.com/blogs/bezel-barrel/rolex-spring-bars-1-to-1-oem-spring-bars-available-for-rolex-watches
 

Edited by HSL
  • Like 1
Posted
19 hours ago, HSL said:

I think that is actually one springbar pin for the links in the bracelet and they are a bit smaller than the springbar pins for the cover which you see at the Cousines link.
To know exactly which spring bar you need you have to look in the clasp or on a marked link which model of bracelet you have.
As an example the 78351-19 have two sizes of these link spring pins.

490356583_Link_Spring_Pins.png.b01d72a8ab41641f2649bc5c18981d44.png

Then if you are not affiliated with Rolex you need to get it from a third part supplier like this.
https://www.everestbands.com/blogs/bezel-barrel/rolex-spring-bars-1-to-1-oem-spring-bars-available-for-rolex-watches
 

 

Posted

Thanks for your answers guys, at least I have something to go on now, was going to repin the whole thing but that size pins and tubes for the rest of it is proving a bit difficult so far!

  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • An industrial break cleaner , like Holts does a good job of rinsing off paraffin 
    • 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 🤣
    • 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. 
    • Like these? https://www.watch-tools.de/metal-straps/springbars/assortment-360-strong-spring-bars-beco-inox-o-1-8mm.php  
    • I've seen them on several swiss-made movements as well. Last one was a Tissot if I remember correctly.
×
×
  • Create New...