Richard sent in this Bulova Accutron, and it’s a very nice one. Quite unusual, with the blue dial, and I really like it.
The battery is empty, but it also hasn’t had a service for ages, and it’s about time.
A first look at the movement, and it’s not too bad. Quite a lot of scratches, but they don’t really matter when it comes to the performance of the watch.
You can see some metal debris on the fork – that’s where it will accumulate. Quite odd though, this shouldn’t be here.
The pawl and index finger are looking good.No idea why this scratch is here …
With 40x magnification, you can see dirt on the pawl jewel – high time for a service!
I take the wheel bridge off, and you can now clearly see the wheel train. The index wheel with 320 teeth (!) is at the bottom, and you can see the pawl and index finger next to it. I have already swung the fingers away from the wheel, to protect the jewels and the wheel.
Coils and fork.
The top plate is almost clear.
And it’s time to turn the movement around.
The 218 date changer is simple, yet very good. Snappy!
Rust on the central arbor that holds the cannon pinion – that will need cleaning up as well.
The fork and pawl finger are cleaned manually outside the cleaning machine to avoid damage.
And the rest goes into the cleaning machine.
The central abor is now nice and shiny.
I start off with the cannon pinion and the jewel.
In order to get the wheels in, the start/stop lever has to be in place, and in run position.
The jewels are capped, and I use the Bergeon 1a oiler to oil them.The bottom plate comes back together.
With the bridge on, I can now adjust the pawl and index fingers under the microscope.
With a new battery, the movement goes back into the case.
With a new gasket, of course.
It’s a 1972 – N2.
I set the watch to atomic time (well, NTP time, really), as I will have to adjust it over the next couple of days.Lovely Accutron!