value History Zenith Grand prix 1900

[fatmarfia]

Zenith Grandprix Paris 1900, Opinions

I have this watch and i have no idea about, i would love some collectors opinions.
I would also like to know if its history/engraving hurt the collectability and value of the watch. Translation in pics. Also wondering how one would rate The condition it is in and can the light scratches be fixed. This is the condition i received it in. It works fine.
Thank very much

 

[mosesgodfrey]

One man’s opinion: The engraving does not hurt the collectibility. First, bc the largest value driver is the gold case. Second, it provides a date and potentially—with more historical research—a unique provenance.

The case could be polished, but polishing inside will efface the hallmarks. The case dent may be more difficult to find a repair, esp without leaving a mark. FWIW, I do not know that even a perfect repair would significantly change value vs cost. Others may disagree.

You may know this, but a closer view of the hammer symbol in the caseback can lead you to the actual case maker firm. Very helpful research from those gents!

 

[roughbarked]

bidfun-db Archive: Watch Movements: Zenith 18.5'''NVSI hunter

www.ranfft.de

I think it possible that it is this movement. Made after the date mentioned on the page. Somewhere between 1915/1920?

Swiss Hallmarks

How to read official Swiss hallmarks, trademarks, collective responsibility marks and other things found in gold and silver watch cases

www.vintagewatchstraps.com

Swiss Poinçons de Maître
There should be numbers in the hammer.

 

[fatmarfia]

bidfun-db Archive: Watch Movements: Zenith 18.5'''NVSI hunter

www.ranfft.de

I think it possible that it is this movement. Made after the date mentioned on the page. Somewhere between 1915/1920?

Swiss Hallmarks

How to read official Swiss hallmarks, trademarks, collective responsibility marks and other things found in gold and silver watch cases

www.vintagewatchstraps.com

Swiss Poinçons de Maître
There should be numbers in the hammer.

166

 

[fatmarfia]

One man’s opinion: The engraving does not hurt the collectibility. First, bc the largest value driver is the gold case. Second, it provides a date and potentially—with more historical research—a unique provenance.

The case could be polished, but polishing inside will efface the hallmarks. The case dent may be more difficult to find a repair, esp without leaving a mark. FWIW, I do not know that even a perfect repair would significantly change value vs cost. Others may disagree.

You may know this, but a closer view of the hammer symbol in the caseback can lead you to the actual case maker firm. Very helpful research from those gents!

166 is the number in the hammer

 

[roughbarked]

OK. That's good. All we need now is someone who has a list of what that means.

 

[mosesgodfrey]

From link above, 166 = case was made by

Henri Jeanneret

Le Locle

Looking at the movement sn, I have seen Zenith crossing 2mm in 1923, so I’m thinking this one near 2.4mm could line up close to the 1933 presentation.

 

[fatmarfia]

From link above, 166 = case was made by

Henri Jeanneret

Le Locle

Looking at the movement sn, I have seen Zenith crossing 2mm in 1923, so I’m thinking this one near 2.4mm could line up close to the 1933 presentation.

Wondering the value on something like this, if you have an idea. Cheers

 

[mosesgodfrey]

My rule of thumb is a range: spot price (14k here) x case by itself vs. spot price x complete watch.

The first is likely value as-is; the second is my rosiest picture (perfectly restored, right venue, right buyers). I base my restoration assessment on half the difference.

 

[fatmarfia]

My rule of thumb is a range: spot price (14k here) x case by itself vs. spot price x complete watch.

The first is likely value as-is; the second is my rosiest picture (perfectly restored, right venue, right buyers). I base my restoration assessment on half the difference.

My rule of thumb is a range: spot price (14k here) x case by itself vs. spot price x complete watch.

The first is likely value as-is; the second is my rosiest picture (perfectly restored, right venue, right buyers). I base my restoration assessment on half the difference.

Cheers, i was thinking this was the case. The total weight is 71.23 grams. Would i be close to say 35-40g for the case.