ETA 2452 Barrel

[BelvidereWoods]

After disassembling and cleaning an ETA 2452 movement I noticed something odd. The barrel has a hook on the rim, as would be expected for a manual wind watch, even though this is an automatic. It's out of a cheap eBay watch, so anything is possible, but the movement otherwise appears to be complete and correct, and was in running condition when I got it. Could this possibly be the correct barrel for this movement, or has someone fitted an incorrect barrel at some point in this movement's past? Any insights would be appreciated.

[AndyGSi]

Are you sure it's a 2452 and are you sure it's not part of the old spring left in the barrel?

[Jona22t]

Hola aficionados como yo por los relojes. Soy nuevo en esto y los desarmo por sumo gusto. Cuando no entiendo algo, pongo todo en una bolsa y al amigo relojero a que me ayude. Creo que no tiene nada que ver ese barrilete (barril) cómo le decimos acá en Argentina con un mov automático. Tengo un ETA 2452 al que le hice el service hace poco y no recuerdo que tenga ese formato. Creo que es de un mov de cuerda manual. Saludos y espero que haya servido de algo!

[BelvidereWoods]

Thanks, Andy, a definite yes to both questions. The main plate is clearly marked with the ETA logo and 2452, and that hook definitely is part of the barrel. I've never seen any automatic movement with a barrel like that, it seems very odd to me.

[RichardHarris123]

6 hours ago, Jona22t said:

Hola aficionados como yo por los relojes. Soy nuevo en esto y los desarmo por sumo gusto. Cuando no entiendo algo, pongo todo en una bolsa y al amigo relojero a que me ayude. Creo que no tiene nada que ver ese barrilete (barril) cómo le decimos acá en Argentina con un mov automático. Tengo un ETA 2452 al que le hice el service hace poco y no recuerdo que tenga ese formato. Creo que es de un mov de cuerda manual. Saludos y espero que haya servido de algo!

English please, @Jona22t

I have hidden your second post, please repost in English. 

Edited January 31 by RichardHarris123

[AndyGSi]

5 hours ago, BelvidereWoods said:

Thanks, Andy, a definite yes to both questions. The main plate is clearly marked with the ETA logo and 2452, and that hook definitely is part of the barrel. I've never seen any automatic movement with a barrel like that, it seems very odd to me.

Photos always help when posting questions but if you're sure it's a 2452 then the barrel is wrong.

[JohnR725]

11 hours ago, AndyGSi said:

Are you sure it's a 2452 and are you sure it's not part of the old spring left in the barrel?

on the older automatic watches the mainspring was to parts and it probably is the outer part. So basically in the early days it's a smooth barrel with a short piece of mainspring with the  hook like a manual wind watch with a manual watch mainspring attached. So all you have to do is pull out the inner peace and replace with a modern mainspring where they come together.  I'm attaching an image for it explains.

[AndyGSi]

7 minutes ago, JohnR725 said:

on the older automatic watches the mainspring was to parts and it probably is the outer part. So basically in the early days it's a smooth barrel with a short piece of mainspring with the  hook like a manual wind watch with a manual watch mainspring attached. So all you have to do is pull out the inner peace and replace with a modern mainspring where they come together.  I'm attaching an image for it explains.

@BelvidereWoods has already confirmed it's part of the barrel so are you in agreement it's the wrong barrel?

[nickelsilver]

8 hours ago, BelvidereWoods said:

Thanks, Andy, a definite yes to both questions. The main plate is clearly marked with the ETA logo and 2452, and that hook definitely is part of the barrel. I've never seen any automatic movement with a barrel like that, it seems very odd to me.

I believe John is right; it may look like part of the barrel, but if you lift it you will find that it comes out. A new automatic spring with integrated bridle will work fine in its place.

[VWatchie]

10 hours ago, Jona22t said:

Hola aficionados como yo por los relojes. Soy nuevo en esto y los desarmo por sumo gusto. Cuando no entiendo algo, pongo todo en una bolsa y al amigo relojero a que me ayude. Creo que no tiene nada que ver ese barrilete (barril) cómo le decimos acá en Argentina con un mov automático. Tengo un ETA 2452 al que le hice el service hace poco y no recuerdo que tenga ese formato. Creo que es de un mov de cuerda manual. Saludos y espero que haya servido de algo!

¡Bienvenido y gracias por tu publicación! Sin embargo, ten en cuenta que este es un sitio en inglés. Por favor, publica futuros mensajes en inglés. Si prefieres escribir en español, utiliza, por ejemplo, Google Translate, Deepl.com o ChatGPT antes de publicar.

"Welcome and thank you for your post. However, please note that this is an English site. Kindly post future messages in English. If you prefer to write in Spanish, please use tools like Google Translate, Deepl.com, or ChatGPT before posting."

[Jon]

From the photo (It's hard to see clearly) it looks like a slipping bridle, which turns in an anti-clockwise direction. The same direction as the spring and when the spring comes to full wind that bridle will pull in on itself with less friction holding it in place and then turns and slips. I bet the mainspring that came out looked like a manual spring with a hook on the end?

[BelvidereWoods]

Thanks to everyone who took the time to respond. We really do have a great community of helpful people on this forum. This did turn out to be a 2-part mainspring as described in JohnR725's post. The "slipping attachment" had become nearly welded in place by dried up grease and corrosion, which is why I thought it was part of the barrel. Once I felt emboldened by the info you all provided to be a bit more persuasive I was able to remove it. I will now order the appropriate modern style automatic mainspring and be able to proceed with reassembly. Many thanks!