A Longines Ultra-Chron automatic wristwatch, sunburst dial, centre seconds, date, in stainless steel, 17 jewel movement, case no. 15601770 on a brick pattern link band, c 1970.
- Movement - The technical name for the workings of a clock or watch, and does not include the dial or 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.
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