Franck Muller Crazy Hour Watch in 18ct Gold
Franck Muller, 18ct yellow gold Crazy hour wristwatch. Model # 7851, 18ct rose gold case measures 1.39 in. x 1.92 in. with silver guilloche dial and jumping hour hand that corresponds to the unique order of markers on the dial. Automatic movement. Brown crocodile strap with 18ct rose gold pin buckle. Comes with box.
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- Movement - The technical name for the workings of a clock or watch, and does not include the dial or case.
- Guilloche - A form of classical decoration consisting of a repeating ornament of interlacing curved bands, sometimes forming circles, and further decorated with rosettes or other flower forms.
The name is derived from the inventor, French engineer Guillot, who invented a mechanical method of inscribing fine repeating patterns on to metallic surfaces.
On enamelled items with guilloche decoration, the surface is firstly engraved with the repeating pattern, and then covered with several layers of enamel, each of which is fired.
Where the item has not been enamelled the form of decoration is usually called "engine turned".
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