The photograph is an electromechanical timer with 12 cams driving 6
contacts on top and 6 on the bottom.

You may find from Delta Electronics, Inc, these;

1.  a "Series 6000 economic programmable cam timers", model 6012,

2.  a "Series 3000 industrial programmable cam timers", model
3012.V3,

http://www.em.co.za/downloads/J-Timers-and-control-relays.pdf
The prices seem way higher than for a PLC from the same source.

No idea of availability.

There are also cascadable motor driven mechanical timers, but this
spreads the MTBF risk across multiple devices.

If the customer is cost sensitive, yet wants a solution with
longevity, some sort of PLC will be best.

If you're supplying free labour and parts, use a PIC with relays.  ;-)

--=20
James Cameron
http://quozl.netrek.org/
--=20
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