Pieter Kock (Late 17th century? - 1758) Amsterdam - Haarlem, was registered as orlogimaker in Haarlem in 1727, having been trained as a clockmaker in Amsterdam.
In the early 18th Century, the English influence on Dutch clockmakers was waning. Norris had returned to London in 1693 and Fromanteel died in 1703, his workshop was continued by his son in law Clarcke under name of Fromanteel & Clarke
At the time of Kock's apprenticeship (circa 1715 - 1725), a new Dutch tradition in clock making was growing in Amsterdam; Pieter Kock was one of the first Dutch clockmakers who learned his trade from Dutch clockmakers working in this new tradition.
In Haarlem the English influence persisted up till 1725, it is most likely that Kock introduced the new Dutch clockmaking tradition from Amsterdam to Haarlem.
J. Zeeman De Nederlandse Staande Klok, Zwolle 1996, p. 159.