What you're viewing in that listing is a Winchester XTR Standard which had those sights. Intro'd per the Winchester 1981 Cataloged was the XTR Featherweight model series and new availability in 7x57 chambering. No sights and Schnabel stock. That year Standard not cataloged in such chambering or I believe 6.5x55.
WRA take over in 1982, the Fwt was briefly continued in those uncommon chamberings. Presumably evidenced here, they build out some Standard Models in 7x57 too.
Bought mine NIB, a couple of years later as backroom find in hardware store as recalling some 4 decades ago! Pix below. SN puts it in the WRA '82 era. I'd question the comment of the Standard model with sights for Europe without more. We were sucking up a lot of European guns, not the opposite.
I considerably prefer the presentation of the Fwt in the Euro chamberings and Catalog touted as average wt. @ 6.8 Lbs.
Mine pix below.
Best!
John.