FYI. Bennett used four different clock mechanisms on their pumps.
1. B-30 (Bennett) Clock
2. N-2 (Neptune) Clock which I think Craig has
3. P-2 (Pittsburgh) Clock
4. Massachusetts Approved
The faces and hands are all different!
This info is from original Bennett literature.
One more thought- One has the reset on the side of the pump. Another has a single reset on one face while another has a reset on BOTH faces!
After making replacement parts for over 40 years I've seen them all...