Girard-Perregaux Sine Logo High Frequency Meaning

blomman Mr Blue · 2017-10-14T06:42:08Z

Explore the Girard-Perregaux Sine Logo on vintage HF movements. Blomman Mr Blue investigates its meaning across automatic, manual, and electrical watches.

Friends, We have seen the Sine logo in several examples. Like this Girard-Perregaux Chronometer HF, reference 8795 with Sine Logo, inside is the famous 32A automatic movement: Or like this Girard-Perregaux Chronometer HF, reference 8856 with Sine Logo, inside is the 30.7 manual movement: (Watch cred

Friends,

We have seen the Sine logo in several examples.

Like this Girard-Perregaux Chronometer HF, reference 8795 with Sine Logo, inside is the famous 32A automatic movement:

Or like this Girard-Perregaux Chronometer HF, reference 8856 with Sine Logo, inside is the 30.7 manual movement:

(Watch credit: CC)

Now I found a document from 1971, showing the Sine Logo of a Electrical watch.

Three different types of movements, all bearing the Sine Logo.

I think it's safe to make the assumption that the Sine Logo refers to the High Frequency of the movement and not the type of movement!

Best

Blomman

The Discussion

TheMadDruid

Oct 14, 2017

The two watches themselves are killers.

Interesting historical fact, Mr. Historian. Blue!! Mr. Blue Historian!

blomman Mr Blue

Oct 15, 2017

Bits and pieces...

Gathered becomes knowledge. Priceless in the vintage world! Best Blomman

KMII

Oct 14, 2017

Interesting fact...

But if I understand correctly not all HF watches wore them - is there method behind the choice, which ones get it and which not?

blomman Mr Blue

Oct 15, 2017

Far from all...

That is why I try to pin down the "which and why"! Best Blomman

Alkiro1

Oct 14, 2017

Very well spotted. The GP museum curator can retire. He has a worthy successor 😉

Best wishes Alkiro

blomman Mr Blue

Oct 15, 2017

I hope he will not retire!

So much to learn and understand about the GP history! Best Blomman

Girard-Perregaux Sine Logo High Frequency Meaning

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