Hamilton 747 Balance Jewel

[fuse63]

Does anyone know how to remove the cap jewel from a Hamilton 747 balance? Im thinking you have to remove the stripguard, but not 100% sure.

[jdm]

Looks like you have to turn it a little and off will go.

[fuse63]

Thats what I thought too kinda like a Kif spring, but it wont move. Not sure I'm trying as hard because I wasn't 100% sure I was suppose to move it. Any recommendations as to what you would use to remove it? Thanks

[rogart63]

It looks like you should insert a screwdriver in that slot and turn. Looks like anticlockwise. 

[fuse63]

I had the same thoughts myself and did try that, but i think i was being too careful not to break it, but im going to give it one more try. Thanks for the help i appreciate it.

[rogart63]

6 minutes ago, fuse63 said:

I had the same thoughts myself and did try that, but i think i was being too careful not to break it, but im going to give it one more try. Thanks for the help i appreciate it.

Maybe better to leave as is. And clean it in the ultrasonic as is and then oil . Should be fine. Could be hard to find a new part if it breaks? 

[fuse63]

I did clean and oil it, but im experiencing some issues with the watch that I believe, not removing the cap jewel, is causing it.

[rogart63]

Okay. Could maybe be some thick old oil under there . Not sure how to remove. Maybe you need to make some tool that goes down on the side of  the jewel.

[fuse63]

So I solved this issue, someone sent me the hamilton 747 service bulletin and it says to put a screw driver in the slot and turn counter clockwise and it will release the cap jewel. I did it last night and it worked so problem solved.

[rogart63]

11 minutes ago, fuse63 said:

So I solved this issue, someone sent me the hamilton 747 service bulletin and it says to put a screw driver in the slot and turn counter clockwise and it will release the cap jewel. I did it last night and it worked so problem solved.

Thought you had already tried that  But happy you worked it out.