DC, Contax cameras are now being serviced by ToCad in USA. I went to their New Jersey offices, where the service is done. I asked the same question you have: "What does "the specified time of each model" mean? They told me that it's meaningless. All cameras regardless of the year it was manufactured &/or purchased will be serviced for the guaranteed period of 10 years stating with the date of the end of production. they thought that some were still being built & that the date for the start of the 10-year period may not be until June of this year. But the point is that all Contax G2 cameras share the same parts, so the date of purchase or manufacture is irrelevant. Since this is obviously not a warranty issue, the date of purchase is irrelevant. The only issue is the period for which they will maintain parts availability.

Bill