Search results
Results from the WOW.Com Content Network
Grande sonnerie (French, meaning 'grand strike') is a quarter (or minute) striking mechanism combined with a repeater. On each quarter hour, it chimes the current hours and quarters past the hour. Depending on the design of the sonnerie either the hours, or quarters can be sounded first.
The watch was reportedly the culmination of a watch arms race between Graves and James Ward Packard. The Super-complication took three years to design and five to build, and sports a chart of the nighttime sky at Graves' home in New York. It remains the most complicated watch (920 parts) [17] built without the assistance of computers. [18]
The timepiece is a gold, double-dialled and double-openfaced, minute repeating clockwatch with Westminster chimes, grande and petite sonnerie, split seconds chronograph, registers for 60-minutes and 12-hours, perpetual calendar accurate to the year 2100, moon-phases, equation of time, dual power reserve for striking and going trains, mean and ...
For premium support please call: 800-290-4726 more ways to reach us
The core of the keyless mechanism is a gear on the watch's winding stem, the clutch (or castle wheel in Britain), with two sets of axial gear teeth on it, which slides in and out. When the stem is pushed in, a lever slides the clutch out, and the outer set of teeth engages a small wheel train which turns the mainspring arbor, winding the ...
Download as PDF; Printable version; ... move to sidebar hide. From Wikipedia, the free encyclopedia. Redirect page. Redirect to: Repeater (horology) ...
In horological terms, a complication in a mechanical watch is a special feature that causes the design of the watch movement to become more complicated. Examples of complications include: Tourbillon; Perpetual calendar; Minute repeater; Equation of time; Power reserve; Moon phases; Chronograph; Rattrapante; Grande sonnerie
Samuel Watson (fl. c.1635-c.1710), [1] was a horologist (clock and watch maker) who invented the 5 minute repeater, [2] and made the first stopwatch. [1] He made a clock for King Charles II [ 3 ] and was an associate of Isaac Newton .