Omega Speedmaster ref 03523.8000 a day date chronograph automatic wristwatch, circa 1999, dial: blue, gold hands, full calendar blue, gold hands, annual calendar with 24 hours indication. Calibre: cal. 1151 automatic, 25 jewels. Case: two tone 18ct gold and stainless steel, snap-on back. Case number: 55104699. Serial number: 175-0044 375-0044. Closure: Omega stainless steel and gold bracelet and folding clasp. Dimensions: 1.50 in. diameter, bracelet circumference approximately 6.30 in. Signed: case. Accessories: Omega international warranty card, one year warranty dated 10 December 2020, one additional link and presentation case
- Date Aperture - A date aperture is a cut out section in the face of a watch or clock, displaying the day of the month.
- Chronograph - A chronograph is a watch that also incorporates the features of a stopwatch, to measure elapsed time. Most chronographs are operated by two buttons, one to start and stop the chronograph second hand, and the other to return that hand to the starting position.
- Circa - A Latin term meaning 'about', often used in the antique trade to give an approximate date for the piece, usually considered to be five years on either side of the circa year. Thus, circa 1900 means the piece was made about 1900, probably between 1895 and 1905. The expression is sometimes abbreviated to c.1900.
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