Alarm
| A function (or mode) which is available in digital, analogue and duo-display watches. An alarm gives an audible signal when a ... |
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Adjustable bracelet
| An adjustable bracelet can be adjusted immediately by the wearer without the need for specialist re-sizing. |
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Alpha-numeric
| A display method using both letters and numbers for indicating time, day of the week, date and other types of information. ... |
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Ambient temperature
| Temperature of the atmosphere within the surrounding environment. |
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Analogue
| A timepiece with dial, hands and numbers or markers indicating the 12 hour time span, and not a digital display. |
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Analogue quartz
| This refers to any analog timepiece that operates on a battery or on solar power and is regulated by a quartz ... |
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Arabic numerals
| 1,2,3,4,5 etc. used to indicate hour makers on the dial of the watch or clock face |
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Automatic
| This is a mechanical watch in which the mainspring is wound as a result of the wearer’s arms motion. This should ... |
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Auto repeat timer
| A feature that allows for continuous operation of a countdown timer. If timer function is set at one hour and started, ... |
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Three-fold clasp
| This refers to the fastening mechanism on bracelets. There are three sections that fold together and are secured by pushing the ... |
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Back light
| A light used to highlight the display on digital watches to enable the display to be read at night. |
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Baguette
| Ladies style watch with a thin, elongated face. A baguette is usually rectangular in shape but may be oval. |
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Band
| An attachment fitted to the watch case to allow it to be worn on the wrist. |
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Band- Leather
| A variety of different animal skins are used in the manufacture of watch straps including calf, crocodile, lizard etc. SEIKO use ... |
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Base metal
| Any non-precious metal. |
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Batons (markers)
| Oblong hour markers on the dial of a watch or clock face. |
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Battery life
| The minimum period of time that a battery will continue to provide power to run the watch. Life begins at the ... |
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Bezel
| The ring around the dial of a watch which holds the crystal in place. On some models (e.g. diver’s watches) the ... |
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Bracelet
| A bracelet is a metal band that holds the watch to the wearer’s wrist instead of a leather strap. |
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Bracelet- Expanding
| An expanding bracelet can be stretched to fit over the wearer’s hand and then fit comfortably on the wrist. |
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Buckle
| The fastening used to secure a strap to the wearer’s wrist. On a bracelet this is referred to as a clasp. ... |
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Cabochon crown
| A rounded semi-precious stone or synthetic material usually black, fitted into the watch crown as an ornament. A type of ornate ... |
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Calendar
| This is also referred to as the date function. A watch feature that shows the date and sometimes the day of ... |
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Calibre
| The size and factory number of a particular watch movement. The number denoting the calibre is displayed on the caseback of ... |
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Capacitor
| A high volume condenser that stores the current generated by a SEIKO Kinetic watch. |
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Case
| The case is the body of the watch to which the strap or bracelet is attached. This is the protective covering ... |
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Caseback
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Champagne dial
| This term is used to describe a gold coloured dial |
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Chronograph
| A watch which has two independent systems: one provides the time of day while the other system measures intervals of time ... |
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Clasp
| The fastening mechanism attached to a bracelet. It connects the two ends of the watch bracelet or strap around the wrist. ... |
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Clasp- Deployment/buckle
| The portion of the band designed to fasten and unfasten a buckle watch. Also known as a hidden clasp. |
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Countdown timer
| Measures remaining time from a preset period of time. |
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Crown
| A small knob situated on the outside of an analogue watch case, normally positioned at 3 o’clock. The crown is used ... |
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Crown- Screwdown locking
| A crown which aides water resistance by sealing the crown against the case. The seal is achieved by matching of a ... |
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Crystal (glass)
| The mineral or synthetic (glass-like) covering over the watch dial. Refer to glass. |
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Day/Date
| This function on a watch shows the day of the week and/or date of the month. |
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Dial (face)
| This is the face of the watch. In an analogue watch the dial consists of numerals or markers indicating the time ... |
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Digital
| A timepiece that shows the time in numbers, rather than by hands on a dial. The numbers appear in LCD (liquid ... |
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Diver’s watches
| Diver’s watches are designed and manufactured to meet ISO (International Standardisation Organisation) regulations, as the lives of the diver’s depend on ... |
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Dual Time
| Capability of a watch to display time in two different time zones. |
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Duo display
| A watch with duo-display has both analogue hands and a digital display which can be used to show the chronograph and ... |
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Electro luminescent display
| A bright blue-green panel lit by current from the battery at the press of a button, which then stays luminated for ... |
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Face (dial)
| This is also known as the dial. It is more commonly used to describe the dial of a clock. Refer to ... |
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Finish
| The surface texture of cases and bands, such as highly polished, satin, metal injection moulding, etc. |
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Frequency
| The measurement of oscillations per second. The oscillation rate of the quartz crystal depends on the shape and the way it ... |
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Functional
| This term is often used to describe a watch which is water resistant and has three hands with a calendar or ... |
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Generating rotor
| A permanent rotating magnet capable of achieving an instantaneous speed equivalent to 100,000 revolutions per minute. |
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Glass
| The glass is the crystal which covers the dial and protects the dial, hands and movement from dust and water. There ... |
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Hands
| An analogue watch always has an hour and minute hand. Analogue watches often have a second hand and may sometimes have ... |
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Instant start function
| A function of some SEIKO Kinetic models whereby the electrical charge bypasses the large volume capacitor and sends a signal to ... |
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Integrated circuit (IC)
| A miniature electronic contained within a silicon chip. In a watch it converts the regular oscillations of the quartz into timekeeping ... |
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Kinetic
| Kinetic is a SEIKO category of watches that differ from standard quartz watches in that they never need a battery change. ... |
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Liquid Crystal Display (LCD)
| The type of display used in digital watches. Shows dark digits on light coloured background. |
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Lithium ion
| A light metallic element used in Hyper Capacitor for the storage of electricity. |
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Logo
| The trade name on the dial or crystal identifying the manufacturer or distributor of a brand of watch. |
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Lumibrite
| A luminous, non radioactive substance used on watch and clock dials, hour markers and hands to enable these to be read ... |
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Luminous
| Self illuminating paint used on hands and markers. |
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Metal injection moulding
| Unique method of manufacturing steel cases and bracelets. Metal is heated to a very high temperature and injected into a mould ... |
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Mode
| The mode switch or button of a watch which controls or selects the function to be used. |
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Moon phase
| A wheel on a watch partially showing through a cut-out window indicating the lunar phases. |
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Movement
| This refers to the inner workings or assembly that makes up the main timekeeping mechanism. Movements are either quartz or mechanical. ... |
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Oscillator
| A counter weight used to generate power in a Kinetic or Mechanical watch. |
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Perpetual calendar
| SEIKO’s Perpetual Calendar watches will automatically adjust for months of different lengths and indicates February 29 in each leap year until ... |
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Phenol resin
| An activated charcoal fibre used in a capacitor for the storage of electricity. |
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Power cell
| In watches, a small button or coin sized metal container with metal salts and chemicals inside which react with each other ... |
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Power reserve indicator
| A on some SEIKO Kinetic watches that advances the second hand to indicate the power reserve in the capacitor. |
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Pressure test
| A method of testing the water resistance of watch cases by air/water pressure. |
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Push button release
| This refers to the buttons which are situated on either side of a bracelet clasp. To unfasten the bracelet, simply press ... |
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Quartz
| A natural or commercially synthesized silicon dioxide crystal. Used in “quartz analogue” or solid state digital watches. When activated by a ... |
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Rotor
| A permanent rotating magnet making up one of the pieces of the step motor. |
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Seals
| Rubber or plastic gaskets used to protect watch movements from the entry of moisture or foreign material into the case. |
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Shock resistant
| A level of resistance to damage from shock that is equal to being dropped from a height of one metre onto ... |
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Solar powered
| Quartz watches powered solely by light with no battery change required. Solar watches convert light energy into electronic energy. A ... |
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Split time measurement
| Measures the elapsed time of a certain moment during an event. The chronograph keeps running while split time is being displayed. ... |
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Stainless steel
| An alloy consisting of iron, chromium and other metals which make a product highly resistant to rust and ordinary corrosion. |
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Stem
| A thin round metal pin or rod attached to the crown, which is rotated to wind mechanical watches, or pulled out ... |
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Step motor
| The combination of a coil, rotor and stator used to create movement through the gear train to the watch hands to ... |
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Strap
| A watch band made of leather, plastic or fabric. Refer to band. |
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Stopwatch
| A wrist or pocket watch used specifically to record elapsed time. May not include normal time keeping functions such as hour, ... |
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Tachymeter
| A tachymeter is normally used in conjunction with a stop watch to measure speed between two given points. |
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Titanium
| Titanium is a space age metal that is 30% stronger than steel, up to 50% lighter than steel. It is also ... |
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Water resistance
| Whilst watches cannot be waterproof, some watches can resist certain water conditions. The water resistance of a watch is tested in ... |
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