Astronomical Regulator: Graham (Week Clock)


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Bought in 1721 as Transit Clock.

From the 1775 inventory (RGO4/309/7) - 'The clock called a week clock only goes two days'. In the next full inventory, (which was taken in 1781), it is described as 'A two day clock with a simple pendulum' (RGO6/21/192).

Last recognisably recorded at Observatory in the 1818 inventory (RSMS372/170). No record found of what happened to it after this date.

Possibly the clock put up for sale at Christies on 10 March 1983, which is described in an advert for the sale as a 'George Graham walnut longcase regulator, supplied to the Royal Observatory at Greenwich in 1721'.