Observe sections turning and fastening (10)

I believe the answer is:

watchstrap

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'fastening' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

'observe sections turning' is the wordplay.
'observe' becomes 'watch' (synonyms).
'sections' becomes 'parts' ('part' can be a synonym of 'section').
'turning' shows that the letters should be reversed in order.
'parts' reversed gives 'strap'.
'watch'+'strap'='WATCHSTRAP'

'and' acts as a link.

Can you help me to learn more?

(Another definition for watchstrap that I've seen is " Band with time".)

I've seen this clue in The Daily Express.

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