Patek Philippe Nautilus Ref 4700/530 an 18ct gold and diamond-set wristwatch with date dial: cream, diamond-set indexes, aperture for date at 3. Calibre: cal. E19C, quartz, seven jewels. movement number: 3156499. Case: 18ct gold cushion shaped, diamond set bezel, face secured by four screws. Serial number: 4131462. Closure: 18ct gold Patek Philippe bracelet and double deployant clasp. Dimensions: 1.02 in., bracelet circumference approximately 7.09 in. Signed: case, dial and movement. Accessories: Patek Philippe box with outer box and two additional links
- 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.
- Movement - The technical name for the workings of a clock or watch, and does not include the dial or case.
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