PeterCDE
10167
That?s an interesting piece
Hi Syuji,
interesting!
I suspect this to be a 1940?s GP 27 or GP 30 calibre (based on an AS1130 ebauche), of which GP had several versions. These are 13 ligne (almost 30mm) movements and quite nice ones, very reliable and sturdy. Here?s another one:
What is interesting about your watch is that i don?t see the calibre number. That?s pretty rare and i?ve not seen another GP that does bear the jewel count, "swiss made" and "Girard-Perregaux", but not the specific calibre and number.
I?d say the case is a replacement part, as are the hands. But it?s quite nicely done.
Personally, i?d try to find case screws for the movement (the holes at 1 and 7 position in your movement picture) because these screws hold the movement in the case. If they are missing, turning the crown can make the movement rub against the case, which is probably not helpful to preserve the condition.
What is even more interesting is the difference in condition: The dial is aged and the case pretty much used, but the movement appears to be quite clean.
That?s probably the effort of the watchmakers who left their signs in the case back (which in return points at an older replacement part).
Nonetheless:
I imagine the dial may clean up a bit and it certainly is a very nice and classic layout (i?m quite fond of all numerals and sub-second dials).
Nice find!
Greetings from germany,
Peter
