Jump to content

2836 Or 2824 Calendar Works Reassembly


Recommended Posts

The calendar gear is slightly different on the 2836-2, and 2834-2 to that of the 2824-2 movement, the 2836-2 has a small flat hook spring which needs to be carefully locked into place on the underside of the calendar gear, and ensuring its the right way too otherwise the midnight date change will not function correctly.

Link to comment
Share on other sites

Here,s that spring I mentioned..

 

Ebauches Part # 2632 "Unlocking Yoke" For ETA 2836-2 & 2879

 
 
If is under tension, and placed under the calendar gear below along with the silver part.
 
ETA 2836-2 & 2879 Date Drive Wheel Ebauches # 2555
 
 
ETA 2836-2 & 2879 Unlock Yoke Plate
 
Link to comment
Share on other sites



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • I've remembered something I had forgotten.  I've come across Dennison before but forgot all about it as I'm never going to use the units.  Maybe we should start a  thread on obscure units of measurement. 
    • Learned a new thing today! 🤓 Looked this up and found this informative document: Watkins-MainspringGauges.pdf
    • Correct one dip is expensive when the chemical is purchased as " one dip " which is why it is mostly reserved for these two small parts as far as information tells us it is mostly tetrachloroethylene. I use it bought as perchloroethyl used in dry cleaning processes, i cant say I'm overimpressed with it though it appears to me to be shellac safe. What may be a better solution for hairsprings is a high lab grade of pure benzine.  IPA is mostly used as a rinse and water displacer and yes it does have the potential to dissolve shellac, personally i would not buy anything that has significant water dilution so 99.9% IPA is the way to go. And lastly the part you are cleaning dictates your choice of cleaning brush, delicate parts like a hairspring requires the finest artist's brush you can find. Plates and bridges can take a little more scrubbing, but always check to make sure the surface is being unharmed. And dont forget a stick of tip benzine soaked correctly shaped pegwood is your mate set up for cleaning dirty jewels and removing stubborn dried up lubrication. 
    • Hello and welcome from Leeds, England. 
    • Den / Dennison is a unit measurement of size this is actually a mainspring gauge . I haven't heard of a pivot been measured in Dennison before.  Though the small thickness gauge is  usually supplied with a Jacot tool and is more accurately known as a pivot destroyer.
×
×
  • Create New...