AndrewD[HoMe Moderator]
12829
This is a Cal. GP03
... a manual wind, 13 Ligne (about 29mm) movement beating at a leisurely 18000vph and with a power reserve of 41 hours. It was made until the mid 1940's but still being cased up into watches in the late 40's.
It is difficult to give you information on the exact age of your watch as, unlike companies such as Omega and Rolex, GP were not using a sequential numbering system at that time.
Do you know how long your father has had this watch and any more of its history? I wonder if the dial has been repainted at some point as some of the fonts don't look quite right.
Not all watchmakers scratch or write the service dates into the case back, but if you plan to use the watch regularly it would be wise to have it serviced and lubricated.
Regards
Andrew
Help! Can you ID this GP???
By: jvukelja : July 24th, 2012-11:42
Hello, I found an old watch my father owns and would like to know from what year it is. I have searched online for information and I can only guess it's from the 50's or 60's. My intent is not to sell it, we are just curious to know more about it. My fath...
Hello daos
By: jvukelja : July 25th, 2012-12:46
Hi, Thanks for showing interest in the watch. I took the lugs off and found a tiny ineligible marking on the bottom. I posted a photo of the inside and back cover in another response in the thread. Feel free to have a look and if you see anything interest...
Movement
By: AndrewD : July 24th, 2012-21:35
Hi Jovan, Very nice to have a watch of your fathers. I agree that it looks late 1950's. What diameter is the case (excluding the crown)? Are you able to remove the case back and post a photo of the movement and tell us any markings/numbers? I assume the m...
Inside of unknown GP
By: jvukelja : July 25th, 2012-12:43
Hello Andrew, Thanks for the reply. The diameter of the watch is 35mm. And yes, the movement is MANUAL. I don't know much about watches so I could not tell you anything about the Calibre. Here is a photo of the inside and the back cover. There is a number...
This is a Cal. GP03
By: AndrewD : July 26th, 2012-06:09
... a manual wind, 13 Ligne (about 29mm) movement beating at a leisurely 18000vph and with a power reserve of 41 hours. It was made until the mid 1940's but still being cased up into watches in the late 40's. It is difficult to give you information on the...
