Girard Perregaux

PeterCDE
10167

• Show profile
• Show other posts

Actually that´s a GP patented solution

G'day,

the fine regulation device is a patented solution by GP; it was made especially for the fast-beat movements.
The US patent presented a slightly different look:

And here´s one integreated in a fast-beat manual wind chronometer, caliber GP 30.7, with blue Isoval hairspring:

The later caliber 43.1; visually almost the same, but the power reserve was extended by almost 50 percent without altering the movement dimensions very much:

The main purpose is to allow for very fine regulation in a very efficient way.
The fast-beat technology intended to establish high precision on a larger scale and in a price range accessible to many more customers who may have choosen an observatory-tested piece otherwise.
In some way, it paved the way to achieve the precision we´re used to today.
Doing so required a device capable for larger scale production (although the total number of GP´s fast-beat movements in all years is only half of Omega´s production of Constellation models in one year). Therefore it keeps in mind efficiency in production and later handling, but also the needs to achieve a very good result.

In fact there are some variations; this represents the ongoing development in mid/late 1960´s, when the results of the field and laboratory tests were implemented into serial production units.
These efforts made GP introduce a new movement variant or new caliber almost every 6 month. It´s been a busy time obviously!

Cheers,

Peter

Site Info.