Regulator Laterndl clock by Josef Klier in Temesvar, circa 1830

This Louis-Philippe-period month-going longcase regulator clock is an exceptional example of French clockmaking, and its complicated mechanism marks several different aspects of passing time. Crafted by Deshays à Paris, the timepiece displays sleek silvered steel dials that indicate the time, date, month, equation of time...

Classic Gilbert #12 regulator in Eastlake oak long case with floral and foliate carved band running under cornice and over a row of incised decoration; with brass ringed clock face f...

A Regulator clock by William Chisholm, London. Baillie has no record of the maker but by the design of its original case, we believe it to be late 18th century circa 1790. The 8 day ...

An English tall case clock by George Slater in mahogany, circa 1830. A fine tall-case clock, with the signature on the painted dial of "George...

Rosewood Portico Regulator Mantel Clock Housed in a fine quality Rosewood portico case with boxwood stringing, turned pillars with brass capitals, gilded cast foliate bezel and stan...

In the noted horology book "Britten's Old Clocks and Watches", G.H. Baillie defines a Grand Sonnerie movement as follows: "A form of quarter-striking in which the hour last struck is also repeated at each hour." It works like this, striking the quarter-hour on one gong and the hour on a second, slightly lower-toned gong: At 3:15 the clock strikes once on the higher chime to indicate the quarter hour, followed by three strikes on the lower chime to indicate the hour. At 3:30 the clock strikes two times on the higher chime (half-hour), followed by three chimes on the lower gong (hour). This way, if you are within hearing distance of the clock, day or night, you can tell exactly what time it is at each quarter hour A "petite sonnerie...