Dust cover for Longines 12L?

konung39 · Tues. 3:10pm

Hello everyone!
Today I ordered a Longines 12L watch; it came without a dial, and I bought it for parts, but it turned out to include a case back accompanied by a perforated dust cover. The seller wasn't sure if this dust cover actually belonged to the watch but included it in the package anyway. I searched online but couldn't find any mention of such a dust cover for the 12L. Did they not come with one, or have they simply all been lost over time?

Radiumpassion · Wed. 4:48am

A perforated dust cover? Cant imagine any Longines left the factory with a cover like that.

konung39 · Wed. 5:28am

Radiumpassion
A perforated dust cover? Cant imagine any Longines left the factory with a cover like that.

Good afternoon! Google's AI claimed it was an anti-static case or something similar.
As it turns out, I’ve since figured out that it’s something like a resonator from a wristwatch with an alarm function (not a Longines, of course). I’ve never actually seen a wristwatch with an alarm, but they were produced in the USSR.

JimInOz · Wed. 6:02am

Radiumpassion
A perforated dust cover? Cant imagine any Longines left the factory with a cover like that.

I think they were made by Oxymoron SA of La-Chaux-de-Fonds.

Waltesefalcon · Wed. 6:25am

I was going to ask if it was ferrous, maybe an old anti-magnetic shield. I can't see why a non alarm watch would need an alarm resonator.

gatorcpa · Wed. 6:41am

konung39
As it turns out, I’ve since figured out that it’s something like a resonator from a wristwatch with an alarm function (not a Longines, of course). I’ve never actually seen a wristwatch with an alarm, but they were produced in the USSR.

I guess it possible, but unless there is a small pin on the underside, it is doubtful that piece came from an alarm watch, Soviet or otherwise.

Many watch companies made alarm wristwatch movements beginning in the 1940’s. Probably the most famous was Jaeger-LeCoultre with its Memovox. But there are so many others. Some US cased Memovox models had dust covers that served as alarm resonators.

gatorcpa

konung39 · Wed. 5:15pm

Waltesefalcon
I was going to ask if it was ferrous, maybe an old anti-magnetic shield. I can't see why a non alarm watch would need an alarm resonator.

Yes, I already realized that this is not from that Longines.

Waltesefalcon · Wed. 5:20pm

konung39
Yes, I already realized that this is not from that Longines.

I was thinking it may be an aftermarket anti-magnetic shield.

konung39 · Wed. 5:21pm

gatorcpa
I guess it possible, but unless there is a small pin on the underside, it is doubtful that piece came from an alarm watch, Soviet or otherwise.

Many watch companies made alarm wristwatch movements beginning in the 1940’s. Probably the most famous was Jaeger-LeCoultre with its Memovox. But there are so many others. Some US cased Memovox models had dust covers that served as alarm resonators.

gatorcpa

Thank you. Regarding the alarm clock, the AI lied to me again.
I'm guessing this plate was just something the repairman had in the parts box.
I bought the clock for only $38, and they gave me this plate as a gift. Maybe it'll come in handy for something around the house.

gatorcpa · Wed. 6:23pm

AI is no good when it comes to vintage watches.

It is pulling information from a lot of sources that just aren’t true.

gatorcpa

Waltesefalcon · Wed. 6:37pm

gatorcpa
AI is no good.

It is pulling information from a lot of sources that just aren’t true.

gatorcpa

I fixed your statement.

JimInOz · Wed. 6:39pm

Repair man:

"Honey, have you seen the filter plate for my coffee press? You know, the little one for my travel press? I can't find it anywhere!".

konung39 · Wed. 6:50pm

JimInOz
Repair man:

"Honey, have you seen the filter plate for my coffee press? You know, the little one for my travel press? I can't find it anywhere!".

Exactly, and I was just remembering what this reminds me of 🤣

gatorcpa · Wed. 7:13pm

Waltesefalcon
I fixed your statement.

I disagree. I’ve been using several AI tools in my practice.

What I found is that it quickly and efficiently pulls information together in an annotated write up that I can use to help me craft advice in everyday language.

The difference is that the pool of information that I’m pulling from is taken direct from tax statutes, IRS regulations, cases and scholarly articles.

Most information you find on vintage watches (and frankly on most items that people try to sell) are based on rumors, uninformed opinions and sales listings. Hardly comparable.

Computers are GIGO machines. Have AI look that one up.
gatorcpa

Waltesefalcon · Wed. 8:39pm

gatorcpa
I disagree. I’ve been using several AI tools in my practice.

What I found is that it quickly and efficiently pulls information together in an annotated write up that I can use to help me craft advice in everyday language.

The difference is that the pool of information that I’m pulling from is taken direct from tax statutes, IRS regulations, cases and scholarly articles.

Most information you find on vintage watches (and frankly on most items that people try to sell) are based on rumors, uninformed opinions and sales listings. Hardly comparable.

Computers are GIGO machines. Have AI look that one up.
gatorcpa

As a general rule I consider the internet to be a GIGO machine. I can see the use of an LLM in a structured environment, like the one you describe for work, accessing only vetted and peer reviewed work. Like you say, information on the web at large is often garbage, so the answers you get when utilizing an LLM will often be garbage. Young people seem to be catching on to this, which I think is a promising development. Now, if only I could get my mom to quit using ChatGPT...

Dust cover for Longines 12L?

konung39

Radiumpassion

konung39

JimInOz

Waltesefalcon

gatorcpa

konung39

Waltesefalcon

konung39

gatorcpa

Waltesefalcon

JimInOz

konung39

gatorcpa

Waltesefalcon

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