Does anyone have a photo of a steel cased 13.33z?

Firstly, thank you @Ubik for posting that advert. I have an image of it saved somewhere but it slipped my mind. Secondly, I believe that the watch in the advert likely contains a Longines cal. 13.33Z, rather than a Valjoux movement as @Seiji suggests, due to the location of the chronograph pusher (but I could be wrong). Below are two examples of the 13 ligne, Valjoux movement.

I think I agree. Never seen any Valjoux 22GH pusher at 3 position. I don't know enough about Valjoux 13.

Seiji, you're right I should have my faith! 😀

(Thanks DD12 for posting those pics of the Valjoux).

I've never seen any mention of it in any other literature before. The joy of collecting Longines is their wonderful records.

"Originally, the serial number 5'306'613 identifies a wrist-chronograph in 18ct gold. It is fitted with a mechanical manually wound movement, caliber 13'''. It was invoiced on 1 October 1935 to the company Girod, which was at that time our agent for Spain.

Longines has used valjoux 13''' around 1934-1935-1936 but these movements were fast replaced by the 13ZN as they were quite expensive for Longines. I think it is quite rare. I don't have it in the collection and we have not seen one coming in for a repair since the beginning of the 2000s." (Longines Heritage)

Thanks to Jennifer for the wonderful reply.

Coming back to the advert - I'm with DD12 that the picture is not of the Valjoux 13 or 15.
However the text below the watch may refer to them.
What do people think the line above the watch means "EN OR Fr."

"EN OR Fr. 2800"="made in gold; 2800 francs (that's the price)

This bothered me for a while. The watch in the ad is the Valjoux 13. It doesn't make scense to show 13.33z over Valjoux prices. And no mention of 13.33z next to illustration.

And...


Just to spell it out for some...these would be the same for Longines.

Still nothing for steel or base metal chrome plate 13.33z. Maybe watch was marketed as premium and steel would be too low level? But then why not have tool watch?

Staybrite didn't exist yet, so base metal is only possibility...if it exists.

Too much coffee and again I do not sleep.

Does AD have the only steel in existence? Or, is the info incorrect?

Thanks dodo44 for the translation. That's really great info.

This is an oddity Seiji - I don't think we can know for sure one way or the other. The Valjoux 13 that DD12 show all have separate single buttons, not operated through the crown. However we know from Longines that if this is the Valjoux 13 then at the earliest the ad must date from 1934.

In which case you would have assumed that by then they would have been offering chronographs with a separate single button.

Adriano states " The serial of the last pieces of 13.33Z can reach 5.7 / 5.8 million (1937/1938), ".

Although in my experience the serial numbers can often be adrift by 2/4 years when Longines checks them in the registers.

However it's possible that all three were in production at the same time! But I would have assumed that any 13.33 produced this late would be with a single button. There is the possibility that the image was older and just re-used in later ads! However I would imagine that having a separate button would be a technical selling point.

We do know that the 22gh - which this ad almost certainly refers to - appears around 1930/31 - in which case if the advert is from this period then it is referring to the 13.33, as the Valjoux wasn't used then!

In most ads from the period and earlier there is almost never any mention of the actual in-house movement name, except for the ligne!

I am of the opinion that the image on the advertisement is the Longines 13 a.k.a. Valjoux 13.
DD12 showed you images of Longines 15 a.k.a. Valjoux 22GH.

DD12 says - "Below are two examples of the 13 ligne, Valjoux movement."

Valjoux 22GH looks like this.

You're not using the information correctly. DD12 is showing you examples of Val 22GH which is not the Longines "13.

Longines "13 is the movement caliber. 13 ligne is a size.

@Ubik is correct. The images that I posted are of the 13 ligne, Valjoux movement and not of the Valjoux 22GH (a 15 ligne movement), which is shown above.

Well, DD12, the Valjoux 13 are these. You will note that there are many coaxial pushers included.

Firstly, you are incorrect. The movement highlighted below is not a 13 ligne Valjoux. Secondly, nowhere was it stated that the 13 ligne Valjoux movement did not exist with a coaxial pusher. Rather, it was stated that I have not seen such a version in a Longines. Above I have shown two examples of the 13 ligne Valjoux movement that was used by Longines. Posting Zeniths and Pateks is not useful.

This is a Valjoux 22GH. And a Zenith. Not relevant!

EDIT: Just because a version of the 22GH had a coaxial pusher, does not mean that such a version was used by Longines. It is dangerous to make such conjectures.

Been wrong before, won't be the last time either unfortunately.
Just to be clear, this is the group that is identifying the Valjoux correct?
Innocent question by the way, I do see other differences between the 13.33z and similarities to the 13zn monopusher.

Please note that there are multiple versions of the 13.33Z. The image below is simply meant to illustrate differences between the three movements.

Sorry to put you thorough so much trouble. Great information. I didn't have any issues identifying 13.33z vs Valjoux. But I am missing the visual clues for 13 vs 15. Without a size reference, I'd have to spend more time looking at the gear train and bridges to see which one is different. (Not usually this lazy.)