This is the 6756th most frequent Russian word.
swiss
The Russian word "свисс" (swiss) is a transliteration and typically refers to "Swiss" (related to Switzerland or its people).
Here, 'швейцарский' (Swiss) is used as an adjective to describe the origin of the cheese, indicating it comes from Switzerland.
Этот швейцарский сыр очень вкусный.
This Swiss cheese is very tasty.
In this sentence, 'швейцарские' (Swiss) is used to describe the type of watches that are from Switzerland, emphasizing their renowned quality.
Нам показывали швейцарские часы на выставке.
They showed us Swiss watches at the exhibition.
Here, 'швейцарские' (Swiss) denotes the geographical association of the Alps with Switzerland, indicating a specific location.