I did win a 1985 era Chraftsman for $35. It is as pictured in 1985 catalog. The seller marked it as "Champion", but that was incorrect, and I told him (he asked if anyone knew what it was to tell him). So, now I have the 1985 Craftsman and the 1986/87 transitional model Craftsman I bought in Alaska (that one is in the USA).
Congrats - that's a great knife. That was one of the first ones I got, too, when I started collecting. It was even marked "Champion" just like your was, mainly because of the confusion around these models. Collecting different versions of 91mm knives is something I focus on, and it sounds like you're starting to do the same (purposefully or not). Champions, SwissChamps and Craftsmen are tough, though, because lots of tools = lots of variants (depending on how many tool changes you want to look at). Here are the different Craftsmen I can think of off the top of my head:
1. Victoria blade, clip point pen blade, nickel silver inlays, aluminum tweezers, square Phillips with can-key. c. 1974
2. As #1, but with Officier Suisse blade, spear point pen blade. c. 1975-1979
3. As #2, but with stainless steel inlays. c. 1980-1982
4. As #3, but with round Phillips instead of square. c. 1982-1985 (this is the one you just bought)
5. As #4, but with awl w/ sewing eye, newer fine screwdriver (this is your original) c. 1986
This is the end of the original Craftsman line.
6. New version - fish scaler is gone, new narrow 2.5mm pliers w/o crimper added. c. 1987-1988
7. As #6, but with thicker 3.0mm pliers. c 1988-1991
8. As #7, but with parcel hook. c. 1991-1992
9. As #8, but with scissors riveted. c 1992-1993
10. As #9, but with new grind on metal file and redesigned 3.0mm pliers. c 1993-1995
11. As #10, but with crimper added to pliers. c. 1995-1999
12. As #11, but with pseudo-locking mechanism added to caplifter c 1999-2004
13. As #12, but with 2.0mm blade shank and new stainless steel file. c 2005-present
. Yeah, I know, tool info overload. That said, with the constant changes, you can date a Craftsman withing a couple years. This is better than you can do for most knives.
FWIW, of all these, I think #1, #5 and #6 are the hardest to find.