パネライのインスタグラム(paneraicentral) - 3月5日 01時52分
One of the most interesting complications that you don’t normally see too often appears on this #Panerai #PAM670 47mm Luminor Marina Equation of Time GMT with blue Sunburst Dial.
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The equation of time is the measurement of the difference between actual time and the conventional time used in everyday life. It is a classic complication of Haute Horlogerie, which harks back to the ancient link between time measurement and astronomy. Because of the elliptical orbit of the Earth round the Sun and the particular tilt of the Earth’s axis of the rotation in relation to the equator, a day is exactly 24 hours long only four times in a year, while on all other days there is a difference between real time (solar day) and conventional time, by which a day may be up to about 15 minutes longer or shorter, depending on the time of the year. This information is displayed on the linear indicator on the bottom of the dial.
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