The Omega Seamaster 200 Omegamatic is a midsize

automatic quartz Automatic quartz is a collective term describing watch Movement (clockwork), movements that combine a self-winding rotor mechanism (as used in Automatic watch, automatic mechanical watches) to generate electricity with a Piezoelectricity, pie ...

watch that

Omega Omega (, ; uppercase Ω, lowercase ω; Ancient Greek ὦ, later ὦ μέγα, Modern Greek ωμέγα) is the twenty-fourth and last letter in the Greek alphabet. In the Greek numerals, Greek numeric system/isopsephy (gematria), it has a value ...

produced from 1997 until 2000. It has

stainless steel Stainless steel, also known as inox, corrosion-resistant steel (CRES), or rustless steel, is an iron-based alloy that contains chromium, making it resistant to rust and corrosion. Stainless steel's resistance to corrosion comes from its chromi ...

case and bracelet ( Bond style with gold Omega symbol clasp), screw-in crown and caseback, engraved with the Omega

Hippocamp The hippocampus, or hippocamp or ''hippokampos'' (plural: hippocampi or hippocamps; , from , and water resistant Waterproofing is the process of making an object, person or structure waterproof or water-resistant so that it remains relatively unaffected by water or resists the ingress of water under specified conditions. Such items may be used in wet env ...

, unidirectional bezel, silver or black dial with orange accents,

sapphire Sapphire is a precious gemstone, a variety of the mineral corundum, consisting of aluminium oxide () with trace amounts of elements such as iron, titanium, cobalt, lead, chromium, vanadium, magnesium, boron, and silicon. The name ''sapphire ...

crystal (

anti-reflective An antireflective, antiglare or anti-reflection (AR) coating is a type of optical coating applied to the surface of lenses, other optical elements, and photovoltaic cells to reduce reflection. In typical imaging systems, this improves the effi ...

) with magnifying (cyclops) date window, case diameter 36mm, 2.4V

capacitor In electrical engineering, a capacitor is a device that stores electrical energy by accumulating electric charges on two closely spaced surfaces that are insulated from each other. The capacitor was originally known as the condenser, a term st ...

(

Renata Renata is a feminine given name of European origin, and a New Zealand surname. The name is of Latin origin of Renatus. The cognate names include Renée and Renate. Notable people with the given name Renata include: * Renata Adler (born 1938 ...

GC920), rotor charging micro generator,

quartz Quartz is a hard, crystalline mineral composed of silica (silicon dioxide). The Atom, atoms are linked in a continuous framework of SiO4 silicon–oxygen Tetrahedral molecular geometry, tetrahedra, with each oxygen being shared between two tet ...

controlled

stepper motor A stepper motor, also known as step motor or stepping motor,Clarence W. de Silva. Mechatronics: An Integrated Approach (2005). CRC Press. p. 675. "The terms ''stepper motor'', ''stepping motor'', and ''step motor'' are synonymous and are often u ...

and quickset date function. Omega reference: 2514.50.00 (black dial), 2516.50.00 (black dial) and 2514.30.00 (silver dial)

Omegamatic caliber

Omegamatic used Omega

caliber In guns, particularly firearms, but not #As a measurement of length, artillery, where a different definition may apply, caliber (or calibre; sometimes abbreviated as "cal") is the specified nominal internal diameter of the gun barrel Gauge ( ...

1400 (

ETA Eta ( ; uppercase , lowercase ; ''ē̂ta'' or ''ita'' ) is the seventh letter of the Greek alphabet, representing the close front unrounded vowel, . Originally denoting the voiceless glottal fricative, , in most dialects of Ancient Greek, it ...

205.111

Rhodium Rhodium is a chemical element; it has symbol Rh and atomic number 45. It is a very rare, silvery-white, hard, corrosion-resistant transition metal. It is a noble metal and a member of the platinum group. It has only one naturally occurring isot ...

plated), 17 jewel autoquartz (not thermocompensated) movement with around 100 hours power reserve. This caliber has the option of manual winding to get the initial power to the

. The mechanism alerts low power reserve by moving the seconds hand in four seconds intervals. The Omega 1400 caliber has a slow date change, which usually takes approximately 1.5 hours to change over. Production of ETA 205.111 started in 1996. It was superseded by ETA 205.911, which replaced the capacitor with a

rechargeable battery A rechargeable battery, storage battery, or secondary cell (formally a type of energy accumulator), is a type of electrical battery which can be charged, discharged into a load, and recharged many times, as opposed to a disposable or prima ...

. Technical documents of 205.111 caliber could be retrieved from ETA customer service portal Omega caliber 1400 is compatible with Panasonic MT920 (nominal voltage of 1.5V). Even though MT920 is designed to last 500 charge-discharge cycles, due to lack of official documentation, it is not clear how long this titanium lithium rechargeable battery will last when used in Omega 1400 caliber, however it is advised that these watches are serviced every 24 months and the batteries are replaced as a matter of course during Omega servicing.

Operation of Omegamatic mechanisms

An oscillating weight ( selfwinding mechanism in a traditional watch) transmits the mechanical energy to the micro generator through the microbarrel. The generator converts this mechanical energy into electrical energy and stores it in an accumulator (

Capacitor In electrical engineering, a capacitor is a device that stores electrical energy by accumulating electric charges on two closely spaced surfaces that are insulated from each other. The capacitor was originally known as the condenser, a term st ...

for caliber 1400). The accumulator supplies the integrated circuit with energy. Regulated by the

, the

integrated circuit An integrated circuit (IC), also known as a microchip or simply chip, is a set of electronic circuits, consisting of various electronic components (such as transistors, resistors, and capacitors) and their interconnections. These components a ...

generates the control signals of the

which transmits these impulses to the gear train whose wheels and the connected hands are displaying hours, minutes, seconds and the date. Caliber 1400 can charge the capacitor by turning the crown of the watch. It will require over 40 revolutions before the low power indicator stops.

Model information and characteristics

Arabic numerals The ten Arabic numerals (0, 1, 2, 3, 4, 5, 6, 7, 8, and 9) are the most commonly used symbols for writing numbers. The term often also implies a positional notation number with a decimal base, in particular when contrasted with Roman numera ...

at 12, 6 and 9, and magnified date window at 3. * Water resistant to a maximum depth of 200 meters/666 ft. * It has a unidirectional bezel that rotates anti-clockwise with "0-60" scale. It is useful for any kind of measures, especially diving times. * The black dial version has silver numbers with orange markers. It also has silver color skeleton hands. The silver dial version has black skeleton hands. * The Omega Seamaster 200 Omegamatic uses a screw-down crown for a tight water seal. * This watch has a screw-in back. It has a series of five holes/notches evenly placed around the back. These are the indentations for the screw-back case opener tool to grip the back piece open and close it. * The bracelet is 18mm wide and it is made of solid links, therefore not prone to stretching over time. This kind of bracelet is one of the most difficult to add or remove links * There is at least one known special edition of the Seamaster 200 Omegamatic. There were 1997 units produced in a case that resembled a diver's tank.

References

{{reflist, 35em Omega watches Products introduced in 1997

Omegamatic caliber

Operation of Omegamatic mechanisms

Model information and characteristics

See also

References