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Omega Seamaster Chronometer Ref. 198.0018


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Basic Info

Brand Omega
Ref. No. 198.0018
Code 20-150823
Movement Quartz
Case material Steel
Bracelet material Steel
Condition 2 (fine)
Location Netherlands, Maastricht
Price 1,250 € (= [SOLD])
Availability Available now


Movement Quartz


Case material Steel
Case diameter 42 mm
Glass Mineral Glass
Dial Silver


Bracelet material Steel
Bracelet color Steel
Clasp Fold clasp


The f300 Hz movements were developed jointly by Omega and ESA under license from Bulova. A small battery powers the f300 Hz tuning fork movement in the Omega. A miniature transductor sets a resonator vibrating at 300 oscillations per second (300 Hz). These oscillations are maintained by an electronic circuit and divided into units of time. As the wrist is turned the resonator is subject to differing strengths of gravitational pull. To cope with this Omega counter balance the resonator to nullify these effects. This and the use of electrical circuits ensure consistent time keeping and Omega claimed accuracy within 2 seconds per day, i.e. accuracy of 99.9977%.