page_title: Clock face
section_title: Stylistic development
hierarchical_section_title: Clock face / Stylistic development
caption_attribution_description: English: A simple 24 hour clock showing the approximate position of the sun.
context_page_description: A clock face is the part of an analog clock that displays time through the use of a flat surface with referencing markings — called a dial, and revolving pointer rods — called hands. In its most basic, globally recognized form, the periphery of the dial is numbered 1 through 12 indicating the hours in a 12-hour cycle, and a short hour hand makes two revolutions in a day. A long minute hand makes one revolution every hour. The face may also include a second hand, which makes one revolution per minute. The term is less commonly used for the time display on digital clocks and watches.
  A second type of clock face is the 24-hour analog dial, widely used in military and other organizations that use 24-hour time. This is similar to the 12-hour dial above, except it has hours numbered 1–24 around the outside, and the hour hand makes only one revolution per day. Some special-purpose clocks, such as timers and sporting event clocks, are designed for measuring periods less than one hour. Clocks can indicate the hour with Roman numerals or Hindu–Arabic numerals, or with non-numeric indicator marks.
context_section_description: Until the last quarter of the 17th century, hour markings were etched into metal faces and the recesses filled with black wax.  Subsequently, higher contrast and improved readability was achieved with white enamel plaques painted with black numbers. Initially, the numbers were printed on small, individual plaques mounted on a brass substructure.  This was not a stylistic decision, rather enamel production technology had not yet achieved the ability to create large pieces of enamel.  The "13-piece face" was an early attempt to create an entirely white enamel face.  As the name suggests, it was composed of 13 enamel plaques: 12 numbered wedges fitted around a circle. The first single-piece enamel faces, not unlike those in production today, began to appear c. 1735.
  It is customary for modern advertisements to display clocks and watches set to approximately 10:10 or 1:50, 
  as this V-shaped arrangement roughly makes a smile, imitates a human figure with raised arms, and leaves the watch company's logo unobscured by the hands.
  In the 1970s, German designer Tian Harlan invented the Chromachron, a wristwatch with a clock face that has no dials but a disc with pie-shaped pattern rotating by the minute over color patterns representing both hours and minutes.
caption: A simple 24 hour clock showing the approximate position of the sun.
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