Henry Walsh, Newbury, England, c. 1840's. Graham dead beat escapement, wood rod, seconds beating pendulum (on standard time). Harrison type maintaining power, jeweled pallets, eight day duration. Oak case with a casket of fruit carved in the base. Also features sidereal time and mean solar time differentiated on one dial (left hand dial), day and date indicators as well as standard astro regulator layout dials containing mean solar (standard time) in seconds, minutes and hours. Dials in 24 vs. 12 hour layout more suitable for observatory rather than domestic use.

Movement has the ability to disconnect left hand dial from main movement at will. Mean and sidereal time is generated through a clever use of Ferguson's Paradox. The principal where two wheels of identical diameter but slightly different tooth count are driven off the same pinion producing two different rates. This clock is also illustrated in English Precision Pendulum Clocks, Derek Roberts, pages 130-132.