Jeweling a Seiko 6309

[LittleWatchShop]

Got the watch as part of a small bag of watches in exchange for some clock repair.  Nothing special...a learning watch.

As you can see I discovered that the center wheel <correction: sweep second wheel> bearing was wallowed out (in Texas, we say "wallered" but I am trying to be international) .

Since I had another Seiko of similar vintage that was never going to be restored, I decided to see about replacing the metal bearing with a jeweled one.

It was surprisingly easy.

Removing jewel from donor plate

Plate with new jewel

Edited February 28, 2023 by LittleWatchShop

[bklake]

This looks fun.  Was the jewel from another area, that happened to be the correct size, in the donor?  Or, a different caliber that had that pivot jeweled? 

I have barrel arbor jewels for a 6309 but too chicken to try it.  A simple swap may boost my confidence enough to give it a shot. 

[LittleWatchShop]

4 hours ago, bklake said:

Was the jewel from another area, that happened to be the correct size, in the donor? 

Same location

[LittleWatchShop]

After assembling, I discovered that I had no end shake on the sweep second wheel.  So I had to unbox the Seitz and press the jewel in farther.  Good now.

Edited February 28, 2023 by LittleWatchShop

[LittleWatchShop]

Done

[bklake]

Nice flat trace.  Excellent.  The lift angle for the 6309 is 54.5. 

[LittleWatchShop]

10 minutes ago, bklake said:

The lift angle for the 6309 is 54.5.

Thanks!!