Explanatory notes
… watch bracelets of heading 91.13 ). Except as provided in paragraph (a) or (b) above, parts suitable for use both in … verges, verge wheels, recoil escapements, dead‑beat (or Graham) escapements, etc., independent winding keys. Parts … etc.) : drum or barrel and barrel wheel, locking plate, great wheel, pin wheel, third wheel, warning wheel, fly, …