Rolex Datejust Ref 1601 a stainless steel and gold wrist watch with date and bracelet circa 1970, dial: champagne, applied baton hour markers, polished baton hands, centre seconds, magnified date aperture at 3, calibre: cal. 1570 automatic , 26 jewels, movement number: D720629. Case: brushed and polished stainless steel tonneau form, fluted gold bezel, screw down crown and case back. Case number: 2536033, closure: Rolex stainless steel and gold Jubilee link bracelet and folding clasp. Dimensions: 1.42 in. diameter, bracelet circumference approximately 6.50 in. Signed: case, dial and movement. Accessories: none
- 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.
- Bezel - On a clock or watch, the bezel is the metal frame into which the watch or clock glass is fitted. In clocks, the bezel may include a hinge and a flange, in effect a door to the face of the clock. In jewellery the bezel is a band of metal with a projecting lip that holds the gemstone in its setting.
- 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.
- Baton Hands - A narrow hand on a watch, sometimes also called a stick hand.
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