Sangamo synchronous. Available in 24hr and 24hr/7 day versions ( 7 day have a small brass wheel under the "dome" to allow days of the week to be omitted.
I would have put at least the contactor circa. `75 m8. Sangamo timers are pretty ageless.
The contactor is made (or was made) by Crabtree, and were actually very good.
The contacts lifted out in one lump and were easy to replace, Typical British made, well built stuff that was designed to last.......................just like today !