Help on a vintage Monopusher chronograph porcelain telemetre dial

durri70 · Aug 24, 2020

Hello to all OF members 😀
I just bought this mint movement with an amazing porcelain dial. I don't have much information about this brand DUNCAN neither about the caliber (the only inscription that has is R44) any idea about what manufacturer made this chronograph . Thanks a lot

TexOmega · Aug 24, 2020

Nice beginnings to a nice chronograph.
I'd guess mid to late 1930's from the dial.

A member will be along to ID the movement, I'd guess Landeron

Manufacturer then Location

google is your friend

DaveK · Aug 24, 2020

durri70
Hello to all OF members 😀
I just bought this mint movement...

On behalf of the description police, this is not “mint”, as in fresh as the day it was born. Lovely piece, I look forward to seeing how it goes with finding a case, it’ll look great ☕

durri70 · Aug 25, 2020

thanks for sharing information , from what I saw online is not a Landeron. I will keep searching unless someone here has deep knowledge and shares 😀

TexOmega
Nice beginnings to a nice chronograph.
I'd guess mid to late 1930's from the dial.

A member will be along to ID the movement, I'd guess Landeron

Manufacturer then Location

google is your friend

ChrisN · Aug 25, 2020

Could be a Minerva? It has some similarities to this 19-9CH I did a few years ago and this was from 1923. This is a mono-pusher pocket watch so a slightly different layout.

On the dial side, you would see this symbol:

Good luck, Chris

durri70 · Aug 25, 2020

Thanks Chris but looking at both layouts I would say that is not the same.

JimInOz · Aug 25, 2020

durri70
Thanks Chris but looking at both layouts I would say that is not the same.

Yes, he noted that.

Do you have a picture of the dial side of the movement (keyless works) and what is the diameter in millimetres?

It looks to be a Valjoux of some sort to my eyes.

durri70 · Aug 25, 2020

JimInOz
Yes, he noted that.

Do you have a picture of the dial side of the movement (keyless works) and what is the diameter in millimetres?

It looks to be a Valjoux of some sort to my eyes.

well the size of the dial is 35mm, in case will be a Valjoux which one ?
here are pictures of the side of the caliber. No key , it's a manual winding
thanks

durri70 · Aug 25, 2020

Dan S · Aug 25, 2020

I think it's a Landeron-Hahn caliber (15.5''' possibly), but I haven't nailed it down yet.

durri70 · Aug 25, 2020

Dan S
I think it's a Landeron-Hahn caliber (15.5''' possibly), but I haven't nailed it down yet.

I will search for that caliber and compare, thanks Dan

JimInOz · Aug 25, 2020

Landeron 15.5''' is getting close.

However, we need to see the movement with the dial off (as in the lower picture) so that the shape of the keyless works can be seen.
These are like the "fingerprints" of a watch movement.

The style of the layout is almost generic and was used by many makers. Valjoux, Landeron, De Praz etc.

durri70 · Aug 26, 2020

JimInOz
Landeron 15.5''' is getting close.

However, we need to see the movement with the dial off (as in the lower picture) so that the shape of the keyless works can be seen.
These are like the "fingerprints" of a watch movement.

The style of the layout is almost generic and was used by many makers. Valjoux, Landeron, De Praz etc.

wow, thanks a lot, there is nothing like an old book

durri70 · Aug 27, 2020

is not a Landeron 15.5

Dan S · Aug 27, 2020

durri70
is not a Landeron 15.5

Do you have a photo of the dial side yet?

durri70 · Aug 27, 2020

Dan S
Do you have a photo of the dial side yet?

do you mean under the dial?

Dan S · Aug 27, 2020

durri70
do you mean under the dial?

The dial (front) side of the movement, showing the keyless works as @JimInOz mentioned. And it would be nice for you to explain your reasoning about the conclusion that it is not a Landeron-Hahn.

durri70 · Aug 27, 2020

Dan S
The dial (front) side of the movement, showing the keyless works as @JimInOz mentioned.

can you share any picture as example, I don't really get you, I thought that the pictures that I share were enough , thanks

Dan S · Aug 27, 2020

durri70
can you share any picture as example, I don't really get you, I thought that the pictures that I share were enough , thanks

Please read the post from @JimInOz, he already explained it very well. Please explain why you think it is not a Landeron-Hahn.

durri70 · Aug 27, 2020

Dan S
Please read the post from @JimInOz, he already explained it very well. Please explain why you think it is not a Landeron-Hahn.

I just compare the images and does not seem the same
can you share the link of JiminOz please