Jump Hour Automatic Pocket Watch, 52mm Sterling Silver Case
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- Movement - The technical name for the workings of a clock or watch, and does not include the dial or case.
- Crown Wind - A winding method for a watch, using a knurled or fluted knob, located at 3 o'clock on a wristwatch and 12 o'clock on a pocketwatch.
- Sterling Silver - Sterling silver is a mixture of 92.5% pure silver and 7.5% of another metal, usually copper. Fine silver is 99.9% pure silver, and is relatively soft and the addition of the very small amount of copper gives the metal enough strength and hardness to be worked into jewellery, decorative and household objects.
This item has been included into following indexes:
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pocket watches, case type
- open face, silver case 553
- silver case 865
- silver, open face 200
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