Weight-driven regulator with true solar time indication and calendar with equation of time dial. Longcase regulator in a solid mahogany case, the door now glazed. Month-going weight-driven movement with Graham dead-beat escapement and mercurial compensated pendulum; 'bolt-and-shutter' maintaining power; Silvered-brass dial with applied silver spandrels. Chapter ring with hours I-XII and subsidiary seconds dial above VI. The central area is matted and gilded. Blued-steel hour and minute hands, the minute hand indicates mean solar minutes, the gilt minute hand shows true solar minutes. To set the clock, the hands are turned until the gilt hand indicates the same time as that shown on a sundial, at this point the steel hand will automatically indicate mean time. The aperture in the dial shows the date and the large dial in the arch rotates once in a year. The scales are read against the vertical index in the centre of the arch; reading upwards the scales are for: time of sunrise, sun's position in zodiac, sun's declination, equation of time, month and date. TRAIN-COUNT. Great wheel 96 2nd wheel 84 pinion 14 Centre wheel 75 pinion 12 4th wheel 72 pinion10 Escape wheel 30 pinion 9

An00035098 001 l

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