If the Wiki articles are to be believed, 1665 is a little early for anyone to have thought of a pocket watch.
Styles changed in the 17th century and men began to wear watches in pockets instead of as pendants (the woman's watch remained a pendant into the 20th century). This is said to have occurred in 1675 when Charles II of England introduced waistcoats. ...
11. "Pocketwatch". Encyclopedia of Antiques. Clocks and Watches. Old and Sold.https://en.wikipedia.org/wiki/History_of_watches
The waistcoat is one of the few articles of clothing whose origin historians can date precisely. King Charles II of England, Scotland and Ireland introduced the waistcoat as a part of correct dress after the Restoration of the British monarchy in 1660. It was derived from the Persian vests seen by English visitors to the court of Shah Abbas. ...
John Evelyn wrote about waistcoats on October 18, 1666: "To Court, it being the first time his Majesty put himself solemnly into the Eastern fashion of vest ..."
Samuel Pepys, the diarist and civil servant, wrote in October 1666 that "the King hath yesterday in council declared his resolution of setting a fashion for clothes which he will never alter. It will be a vest ..."https://en.wikipedia.org/wiki/Waistcoat
That said, I'm not sure that doublets didn't have pockets before vests replaced them. But for what it's worth.