OMEGA Seamaster Planet Ocean Liquidmetal 2009 - Limited Edition

The ratchet wheel in a watch is a toothed wheel that is fixed by a square hole to the barrel arbor. The size of the hands and their position reflect their importance: the minute hand is always the larger and is positioned in the centre of the dial. Observatories and Manufactures once referred to highly precise regulators, also known as parent clocks, to set their watches to time.RepassageThe final and complete inspection of the watch with its mechanism and aesthetics, just before it leaves the manufacturer.Quarter-repeater: sounding a low note for the hours and a "ding-dong" for each of the quarters; Five-minute repeater: striking the hours, quarters and five-minute periods after the quarter; Minute-repeater: striking the hours, quarters and minutes; Grande sonnerie (grand strike): striking the hours and quarters automatically and repeating when a push-piece is pressed down; Chiming repeater: in which the quarters are struck on three or four gongs of different pitch.RetrogradeAn hour, minute, seconds or calendar hand which moves across a scale and, at the end of its cycle, returns immediately to zero to begin again.RimA circular mass held by spokes to form the balance.Roman numeralsI, II, III, etc. Roman numerals have traditionally been used on clock and watch dials. Both rate and appearance are inspected.RepeaterWatch that strikes the hours by means of a mechanism operated by a push-piece or bolt. There are various types of repeaters.