ballchair2
3
Thank you very much, Peter!
Hi Peter,
and thank you very much for your prompt and detailled answer. I recognize that it is a real pleasure to make use of this forum!!!
I will prepare some photographs to put into the forum.
I agree that the dial could be non-original because of the missing "39J" logo. Seller spoke about a "re-dial". Using a magnifying glass and examining the dial I find out that everything seems to be original, well, each detail is perfect, as if the watch has just left the factory! It shines brillant, a smooth "mother-of-pearl" brilliance, by no means repainted! Sorry for my words, but I love the watch from the very beginning 
See you and thanks again, GP-lovers!
Mark
p.s.
Does anyone have any source (internet), where to find out detailled model-history of GP?
Some data
By: PeterCDE : September 4th, 2002-02:02
Hi Mark, first of all: Congrats, you?ve got a nice one. Calibre 42.3 was introduced in about 1966 as the third gyromatic movement by GP. Measurements are 11 1/2 lines (25.6mm) width, 5.2mm heigth and equipped with a patented micro-metric adjustment device...
is that the AS base?
By: ei8htohms : September 4th, 2002-03:03
Hi Peter, As usual, you are a fount of wonderful information on GP's! If that movement is based on the AS ebauche, I think the problem might be wear in the reverser gears. I worked on a Zodiac with that movement (the Zodiac 70-72) that had a badly worn re...
thanks Peter!
By: ei8htohms1 : September 5th, 2002-09:21
Hi Peter, I've been doing a little more research on these movements and came across references to Communaut?e Horlog?re de Pr?cision (CHP). Apparently CHP took the AS ebauche and supplied finished movements to Girard Perregaux, Doxa, Favre Leuba, Eberhard...
It?s always my pleasure
By: PeterCDE : September 6th, 2002-02:02
to be here and share our passion for GP. Hampel?s book "Automatic wristwatches" mention CHP, but does not refer which AS base movement was used. According to germany?s Flume sheets (equivalent to Bestfit) several parts as the balance pivot are not interch...
