(at around 39 mins) Dr. Blake looks at his watch that shows "Quartz" on the dial. The period for this episode is 1959 or 1960 whereas the first "Quartz" watch was manufactured by Seiko in 1969.
When Dr. Blake waits for a delivery to the funeral parlor, the white truck is a 1967 Bedford TJ J1. The Blake series takes place in the When Dr. Blake waits for a delivery to the funeral parlor, the white truck is a 1967 Bedford TJ J1. The Blake series takes place in the late 1950s to mid 1960s.