Removing a SA4130 from the case and how to reset the Keyless

[daytonadude]

Was swapping cases, put the stem back in, screwed the case clamps, but the crown came shooting out when I tried to set it to the time setting position. Don't yet have the courage to remove the dial, hands and rest of the parts to reset it! I was soooo close.

 

[Carlytoss]

Very good tutorial, thank you

Does anyone know where I can buy this spring yoke at an affordable price? The only ones I've found so far are above $100 with shipping, which seems pretty expensive for such a small piece that has a very strong tendency to fly off in all directions...
Thanks for your help

 

[famtss]

i had to remove the dial and hands to fix the keyless and i found there is no dial washer on my movement, is this normal?

 

[KJ2020]

i had to remove the dial and hands to fix the keyless and i found there is no dial washer on my movement, is this normal?

That washer is called the hour wheel friction spring and it is supposed to be there. Every 4130 I've taken apart has had one. It keeps the hour wheel from dislodging and lifting upward if the movement is turned upside down (with a dial in place). A watch may function without one, especially if it isn't turned upside down often.

BTW as @Digital. has documented the 4130 keyless might be easily reset without removing the dial. First check to see if the yoke for sliding pinion has lifted out of its sliding pinion detent and try to push it back with a small screwdriver.

If the setting lever is in the time setting position you can proceed as follows:

Bend a paperclip with a little hook on the end as shown. I sanded the hook end flat to keep from scratching up the parts, but the opening next to the crown is large enough to fit an unsanded paperclip, even a large one. If you hold the movement at eye level with good light you can see what you are doing.

You just need to put the hook behind the post on the setting lever and then pop the post to the other side of the setting lever jumper. This puts the keyless in the winding position and the stem will go right back in. Note the disappearance of the fat knurl on the stem in the final pic.

 

[2671]

That washer is called the hour wheel friction spring and it is supposed to be there. Every 4130 I've taken apart has had one. It keeps the hour wheel from dislodging and lifting upward if the movement is turned upside down (with a dial in place). A watch may function without one, especially if it isn't turned upside down often.

BTW as @Digital. has documented the 4130 keyless might be easily reset without removing the dial. First check to see if the yoke for sliding pinion has lifted out of its sliding pinion detent and try to push it back with a small screwdriver.

If the setting lever is in the time setting position you can proceed as follows:

Bend a paperclip with a little hook on the end as shown. I sanded the hook end flat to keep from scratching up the parts, but the opening next to the crown is large enough to fit an unsanded paperclip, even a large one. If you hold the movement at eye level with good light you can see what you are doing.

You just need to put the hook behind the post on the setting lever and then pop the post to the other side of the setting lever jumper. This puts the keyless in the winding position and the stem will go right back in. Note the disappearance of the fat knurl on the stem in the final pic.

This will definitely work, a dental pick or a pair high qualtiy SS tweezers will suffice. Space between the dial and movement is large enough to actually see the lever.

 

[Shieek]

That washer is called the hour wheel friction spring and it is supposed to be there. Every 4130 I've taken apart has had one. It keeps the hour wheel from dislodging and lifting upward if the movement is turned upside down (with a dial in place). A watch may function without one, especially if it isn't turned upside down often.

BTW as @Digital. has documented the 4130 keyless might be easily reset without removing the dial. First check to see if the yoke for sliding pinion has lifted out of its sliding pinion detent and try to push it back with a small screwdriver.

If the setting lever is in the time setting position you can proceed as follows:

Bend a paperclip with a little hook on the end as shown. I sanded the hook end flat to keep from scratching up the parts, but the opening next to the crown is large enough to fit an unsanded paperclip, even a large one. If you hold the movement at eye level with good light you can see what you are doing.

You just need to put the hook behind the post on the setting lever and then pop the post to the other side of the setting lever jumper. This puts the keyless in the winding position and the stem will go right back in. Note the disappearance of the fat knurl on the stem in the final pic.

Thank you so much. I fixed my keyless with these instructions.

 

[LostinHifi]

Thank you so much for this posting, could fix the issue with your post easily!

 

[polskicowboy]

Found the web archive of the original post with the photos. Instead of bothering the OP I went on Wayback Machine (web.archive.org). *Takes a minute or so to load the page.

Removing a SA4130 from the case and how to reset the Keyless

Here is a guide how to reset your sa4130 keyless, this movement is found in the Noob Daytona with full working chronograph. An amazing movement which is very close to the Rolex 4130. There are two parts to this guide, If you're confident with working with your hands on small parts you can try...

web.archive.org

 

[polskicowboy]

Found the web archive of the original post with the photos. Instead of bothering the OP I went on Wayback Machine (web.archive.org). *Takes a minute or so to load the page.

Removing a SA4130 from the case and how to reset the Keyless

Here is a guide how to reset your sa4130 keyless, this movement is found in the Noob Daytona with full working chronograph. An amazing movement which is very close to the Rolex 4130. There are two parts to this guide, If you're confident with working with your hands on small parts you can try...

web.archive.org

Had no clue what keyless works was. New hobby. Thanks to this guide, I simply pushed the crown pinion (possibly incorrect term - see guide) back in and reset. Nobody I can find by me in Los Angeles wanted to fix this or bother polishing my rehaut a little prior to the mistake. Did it myself and learned about keyless works. I did scratch a letter on the dial with a chopstick (wooden dow) maneuvering the hands. But I am learning and reps will only get better I hope.

For the chrono hands... I am glad I opted for the good Bergeon set of 2 pry bars. $66 buck for two simple pry bars but I needed the flat ends.

*One trick I learned - Stretch Cling/Glad/Saran wrap on my finger and picked up the the chrono hands that way to place on dial. Unfortunately I did not have plastic or non-metal tweezers. A new must have for working with dial hands in my opinion. I scratched the other hands a tiny bit.

 

[seanzorio]

These kinds of guides are crazy cool. I am a good mechanic, but super intimidated by watch work. I guess it's becasue it's all so intricate and small, but hats off to those people making/updating these!

 

[MaximillianGT]

Had no clue what keyless works was. New hobby. Thanks to this guide, I simply pushed the crown pinion (possibly incorrect term - see guide) back in and reset. Nobody I can find by me in Los Angeles wanted to fix this or bother polishing my rehaut a little prior to the mistake. Did it myself and learned about keyless works. I did scratch a letter on the dial with a chopstick (wooden dow) maneuvering the hands. But I am learning and reps will only get better I hope.

For the chrono hands... I am glad I opted for the good Bergeon set of 2 pry bars. $66 buck for two simple pry bars but I needed the flat ends.

*One trick I learned - Stretch Cling/Glad/Saran wrap on my finger and picked up the the chrono hands that way to place on dial. Unfortunately I did not have plastic or non-metal tweezers. A new must have for working with dial hands in my opinion. I scratched the other hands a tiny bit.

The way you "work" with your rep gives me an ulcer. FFS there is something called Rodico out on the market that people use to clean dial and occasionally stick the subdial hands to the place. And yes, an effing tweezer from Dumont.

 

[polskicowboy]

The way you "work" with your rep gives me an ulcer. FFS there is something called Rodico out on the market that people use to clean dial and occasionally stick the subdial hands to the place. And yes, an effing tweezer from Dumont.

Haha. Love it... I am fearless on a rep. And plus, I tried to get a pro (several) to work on it. Yeah, knew about Rodico. At some point, I stop waiting for more packages to arrive and get it done. A little tire inflator did the job on dust.