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13ZN Chronographs Inquiries and Information.

Oku
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It is a 13zn. 30CH has another bridge.
 
Fost
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It appears very nice to my eyes but whitout any knowledge and having followed some auctions in the past, those beast tend to be sold at rocket price...Quite surprise to see one like this on the bay
 
Yuriae
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What are your thoughts about this one?

Have a nice weekend everyone,

Best,

Yuriae/Marc

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minutenrohr
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1. The lack of the word "Base" in the tachy scale
2. "Telemeter" (instead of "Telemètre")
3. "Longines" = wrong type
4. Incorrect hands (and scales) in the counters
5. Red second counter hand
6. "SWISS" on an early 13ZN dial
...
...
...
 
DirtyDozen12
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The example on the left (6'152'xxx) is slightly earlier than the one on the right (6'398'716). Though similar, the cases and dials are not identical. However, I believe that the crown, chronograph seconds hand, and sub-dial hands on the earlier piece should resemble those found on the later one.
hands3.JPG
 
DirtyDozen12
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Another one of these unsavory, black dials appeared on Instagram today. The signature is not the same as others that I've seen. Still, this dial is not original.
bjo.JPG
 
Seiji
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DirtyDozen12 DirtyDozen12
13ZN dials can indeed be found with large subdials, "10, 20, 30" counters, black and blue scales, and possibly even printed winged hourglass emblems. Can they be found with all of the above? Who knows.

Rather than attempting to establish a rule, which is bound to have exceptions, I would suggest that you assess each dial individually; studying its specific nuances.

Well, now we know Longines did produce this style 13zn dial.
 
DirtyDozen12
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Seiji Seiji
Well, now we know Longines did produce this style 13zn dial.
Please provide the evidence. The dial that you have shown is not an original, 13ZN dial.
 
Seiji
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As I have stated multiple times. It is created and printed by Longines. No other company other than Longines was involved in the final outcome that is certified authentic by Longines St. Imier Heritage Workshop. You are welcome to send an email and ask about Service Request 1167071. If you wish to do this, I will privately give you my serial number for the watch as well.

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DirtyDozen12
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I am not questioning that Longines were the only ones involved in the refinishing process. I would simply like to see a piece of evidence that suggests the existence of original (from the early 1940s) 13ZN dials with these design traits. It seems that Longines did not provide you with such evidence apart from a written statement (underlined below). I will inquire...
redial2.JPG
 
Seiji
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Please do contact them. I contact Jennifer frequently and wish to avoid wearing out my welcome. You are correct in that I did not insist on pictorial documentation. I was hoping to get an Antimagnetic or Copper Dial and asked by phone if that was possible through the New Jersery office. They informed me that St Imier will not change the dial design from its original design. If they know what is correct for that watch, the head watchmaker will not allow a change is what I was told was the response from Heritage Workshop.
 
Seiji
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I respected St Imier's response. I assume that Longines Heritage Museum and Heritage Workshop are all about preserving their history and keeping value to the customer. They are not Chip Foose customization car body shop willing to do anything if the customer pays enough money. Certainly, if there were options open, I would not have chosen the least popular and least known dial type for my watch considering how much time and effort this process took. Heritage Workshop is not interested in flooding the market for examples with sandwich dials and cheapen their brand. So I respectfully accepted whatever they were going to do to the watch and truly believe Longines made that style dial in 1940s. Hopefully you will find more substantial documentation.

Not to mention how meaningless the Certificate of Authenication would become.
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DirtyDozen12
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Looks like a ref. 5415 with a snap-on back. These are more commonly found with radium numerals and no tachy scale. Parts that are often replaced, such as the hands and crown, all appear correct. The dial looks good from afar, but the numerals are different than the ones on the other tachy-adorned example that I've seen. I imagine that you do not have better/more images...
 
Gstp
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Its from an ad, case back marked 23485, looks like seller didnt know what she had until someone told her. Asking for offers....
 
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