Thanks a lot for this exciting pics and insights

Apr 03, 2007,06:42 AM
 

Peter, that's a great thing what you're again doing for us! Amazing pictures I love very much. And I'm particularly glad to learn about and understand now this movement in a way I would like to be able to understand the 3XXX mvts. as well, which have not been documented in this extensive way. I always thought this to be a pity due to the fact that the GP mvts. from the early 90ies onwards are outstanding technical inventions, not only in the field of haute horlogerie but also in the field of basic watchmaking tradition. The fact that the 3XXX mvts. are used also as ebauches by other companies for me adds an argument to the wish for having these documented as well es the new ones. The same is valid in my opinion for the "Equation" - quartz mvts. being an outstanding range of quartz mvts. as well as having been used by other companies like Baume et Mercier, Concord for their watches.

But having already the opportunity to have such close looks on the cal. 4500 is a great pleasure for me and makes me happy to be a participant of this forum.

Warm thanks again, Peter, and greetings, Alex

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Some thoughts on the new ref. 25820 Vintage45 "Square" and GP´s new caliber 4500

 
 By: PeterCDE : April 2nd, 2007-23:58
Dear enthusiasts, following up to our previous introduction , i´d like to have a closer look at GP´s new pre-SIHH introduction reference 25820, dubbed the Vintage 45 "Square" or "Carree": Vintage 1945 Carrée At the beginning of the 90s, well before "vinta...  

Part 3 - some more details of the new caliber GP4500

 
 By: PeterCDE : April 3rd, 2007-00:07
As we´ve seen, the new GP4500 caliber incorporates some practical, new solutions to improve the efficiency, longevity and durability of this movement. It is promising to be an accurate, sturdy timekeeper for a long time to come. But is it a nice movement ...  

Thanks a lot for this exciting pics and insights

 
 By: Alexander from Germany : April 3rd, 2007-06:42
Peter, that's a great thing what you're again doing for us! Amazing pictures I love very much. And I'm particularly glad to learn about and understand now this movement in a way I would like to be able to understand the 3XXX mvts. as well, which have not ... 

Oh, there´s something for you!

 
 By: PeterCDE : April 3rd, 2007-12:06
Hi Alexander, thank you a lot! That´s much appreciated and the pleasure is completely on my side! In terms of the GP3xxx range, have a look here. There aren´t many chances to get much closer than this: http://www.tp178.com/jd/gp/article1b.html Sure it´s n... 

Indeed,

 
 By: Alexander from Germany : April 4th, 2007-03:42
thanks again for this hint, I didn't note this study before, best wishes for the feast days, Alex

My pleasure!

 
 By: PeterCDE : April 4th, 2007-12:06

Thank you Peter

 
 By: pr7 : November 2nd, 2007-09:07
Hello Peter, first I wanna thank you for this indepth look. I was wondering about how GP will provide the same moment with the central second position with a double third wheel, but with the second at 9 with a singular third wheel? Because in my opinion t... 

Like this?

 
 By: PeterCDE : November 2nd, 2007-11:59
Hi Philipp, something like this? These are prototypes and in fact the GP4500 caliber with central second! While i can´t share details on upcoming models, at least it seems such is being evaluated very closely... Does this help a bit? Cheers, Peter...  

More technical...

 
 By: pr7 : November 3rd, 2007-15:16
Hey Peter, hmm... that's not really what I meant, but also nice pictures of course. In part 2 you showed us a picture with details of the different variations of seconds. And if GP produces the second at 9 they perhaps will have different torques and thou... 

Oh, that´s what the double third wheel is made for

 
 By: PeterCDE : November 3rd, 2007-16:23
G'day, regardless the attachment of the wheel driving the second hand, amplitude and performance will always be the same. As noted, that´s what the double third wheel is made for; the second hand pinion always engages the same wheel, eliminating the need ... 

We're getting closer :o)

 
 By: pr7 : November 4th, 2007-03:45
Hello Peter, yes in this case you're right. But what if you use the second wheel to display the small second at 9 without the second hand pinion like on the picture with only a single third wheel. You definitly will have less engagements in your going tra...  

Well, i think that´s not possible

 
 By: PeterCDE : November 4th, 2007-06:30
G'day, i´m rather tempted to trust GP´s engineer in this one Actually attaching a seconds hand onto the second wheel is a rather unconventional thing to do and as said, regardless the position of the second hand there´s no difference otherwise. In this i ... 

Difficult issue

 
 By: pr7 : November 7th, 2007-00:32

Hi, Philippe,....

 
 By: SuitbertW : November 4th, 2007-06:57
....I believe GP opted for this design for beeing flexible and vesatile. Of course one could use the classical small seconds design and use the fourth wheel directly to display the second. But, than you're also bound to design the train around it - i.e. o... 

strange arrangements on pictures

 
 By: robert_bob_stefan : November 5th, 2007-02:48

The black dial looks smart

 
 By: Jokoh : April 3rd, 2007-02:01
Can't wait to "feel" it on my wrist thanks Peter cheers joe