Help me identify this pocket watch movement

[LittleWatchShop]

I have gone through three books I have on American Pocket Watches (showing pictures of movements) and I have used my Google Fu and still do not have an ID on this.

Any ideas?

I am going to service it.  It is running so that is a good sign.  The crown is dislocated from the stem, so that will be an issue.

Any advice on working on these...this will be my first pocket watch.

 

[WatchMaker]

Alida was a trademark of Havila Watch Co., Switzerland.

The following might be of interest : https://www.watchuseek.com/threads/niello-pocket-watch-any-ideas-or-info.5288787/

[LittleWatchShop]

2 hours ago, WatchMaker said:

Alida was a trademark of Havila Watch Co., Switzerland.

The following might be of interest : https://www.watchuseek.com/threads/niello-pocket-watch-any-ideas-or-info.5288787/

You are amazing!

[LittleWatchShop]

Here it is after teardown.

It is now reassembled.  I need a stem for it.  The one in the watch was goobered up.  Tomorrow I will try to turn one on the lathe.

[Michael1962]

Weren't only certain watches allowed to use the word Chronometer or a derivative of the word?

[jdm]

On 12/31/2021 at 11:50 AM, Michael1962 said:

Weren't only certain watches allowed to use the word Chronometer or a derivative of the word?

It's an industry regulation, you can read some of its history https://www.cosc.swiss/en/cosc-past-and-present/our-history

[LittleWatchShop]

I have it running, but something strange happens.  If I bump it...literally drip it 20mm like when setting the movement on the bench with a slight shock...it stops.  I remove the balance and replace it and it runs just fine.  Been looking carefully at the jewels and in this case...side shake.  How does this look?

[LittleWatchShop]

3 hours ago, LittleWatchShop said:

I have it running, but something strange happens.  If I bump it...literally drip it 20mm like when setting the movement on the bench with a slight shock...it stops.  I remove the balance and replace it and it runs just fine.  Been looking carefully at the jewels and in this case...side shake.  How does this look?

I think the problem was the hairspring.  I cleaned the balance assy with one dip.  Needed three dips and a demag for good measure.

 

[Michael1962]

On 12/31/2021 at 10:40 PM, jdm said:

It's an industry regulation, you can read some of it's history https://www.cosc.swiss/en/cosc-past-and-present/our-history

Thanks for that @jdm