Caliber / maker identification? Chronograph pocketwatch.

[Endeavor]

Anybody any idea who has made this movement and perhaps a caliber-number?

Diameter outer edge 42.9 mm

I have amplitude and timing issues and may have to find a new balance staff for it

 

[nickelsilver]

Looks to be a Valjoux 5. The "R" is for Reymond Freres, the original company name. They changed the name to  Valjoux in the 20s, then joined Ebauches around the 40s, after which you see the R inside the familiar shield shape.

 

Staff appears to be available.

Edited March 1, 2024 by nickelsilver

[watchweasol]

Hi. Looking at the bestfit book. Equates to a Valjoux 5. As suggested ny nicklesilver. It’s 19 Ligne.

The Valjoux 8 is similar but with 3 functions and 1 pusher   30 min register.

[Endeavor]

58 minutes ago, nickelsilver said:

They changed the name to  Valjoux in the 20s

 

16 minutes ago, watchweasol said:

It’s 19 Ligne

Thank you both for this valuable information

Balancestaffs.com seems to be a Dutch company (you know the saying: if it ain't Dutch, it ain't much  ....... if that was only true ) Not sure if they deliver to amateurs, but being Dutch myself, we can hopefully discuss that in our native language

So, @nickelsilver, you think it's a 1920's watch?

[nickelsilver]

51 minutes ago, Endeavor said:

So, , you think it's a 1920's watch?

It certainly could be. They were already producing wrist size movements by then, and I imagine those took off and pocket movements went down in production after that. Almost definitely pre-40s when they joined with Ebauches. Though- there are cases where movements get assembled long after the parts are produced, so you might see something odd like the R without the shield, but the watch was actually finished in 1950.

 

Balancestaffs.com will sell to anyone, very easy to deal with.

 

On edit- looking at the pics again I realized this is pin-set. For me that would make this pre-20s pretty much for sure.

Edited March 1, 2024 by nickelsilver

[Endeavor]

@nickelsilver; Balancestaffs.com, if the movement is a Valjoux 5, 19''', asks €38.95 (ex.VAT?), which is payable if it needs to be.

However searching eBay, I found what may be the staff that I need?

A hit or a miss ?

https://www.ebay.de/itm/196012170796?itmmeta=01HQWWSRJVBG8SSBE5VYDB00BQ&hash=item2da33c5e2c:g:5csAAOSwCktlHQZ3&itmprp=enc%3AAQAIAAAA4JX8SbNoWhmFcf32q3IPfNyF7ITuTPeb5R1fY2gubBZwZ4G3VSWE4%2B%2FRenaNFsnXoSun6e%2FcOGXQhilVgX6keAuJ%2BIH5LWOSlw6beehdgkqpgJoqgO39iEj1LOZd6HaeTluJEFR7os1Wa9LfZtsfn2SD2HckkAyid%2FnHHiefqzVaFz9gsj4H0U5UFjexsPCSau3M5HkipNa%2F5HfRXb7%2BpLi1DSj6VNc92YVCf%2FpWIvSJ630DPjsm4T97FgLUfax%2BiiuNM%2F%2Bj9WhlHRqTIt%2BdW7ldU6n%2Bm1DLnXG%2F1iB2CXCA|tkp%3ABk9SR8iJ55y_Yw

 

Edited March 1, 2024 by Endeavor

[nickelsilver]

Balancestaffs seem to price according to supply; I have gotten staffs for less than 20 euros, most seem to be mid-20s, this one is almost double. I tend to like giving business to the supply houses that help keep watchmaking alive; but I don't think these guys are going to suffer if you buy the Ebay staff! That one does look to be correct (matches Balancestaffs' dimensions- one reason they are so helpful).

[Endeavor]

3 minutes ago, nickelsilver said:

I tend to like giving business to the supply houses that help keep watchmaking alive

Sure, I understand your admirable reasoning 

But if you don't mind, my pension budget is limited and I like to keep my hobby alive too

Thanks for your (and @JohnR725), for the excellent help