
Only then are they tested and selected, and only quartz oscillators that meet strict standards are used in the 9F quartz movement. Seiko Neo Sports Chronograph Black Dial Quartz SSB397 SSB397P1 SSB397P 100M Mens Watch. From the very beginning, Seiko has been a pioneer of quartz watches.
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Grand Seiko was the first watchmaker in the world to utilize quartz oscillators selected through this process.Īs part of the process, quartz oscillators made in-house are first 'aged' for three months, during which they are subjected to certain voltages so that their characteristics stabilize. Seiko Wristwatches with Quartz Movements. Powered by a new three-day movement, a mechanical GMT diver’s watch joins the Seiko Prospex collection for the first time. Recognizing this, Grand Seiko introduced an aging process for its chosen crystals to ensure that the oscillators stabilize before being used. Other oscillators may perform with high precision at first, but undergo change in their oscillation over the years leading to inaccuracy. Vintage watches for sale and consignment options - Seiko, Citizen Omega and. The accuracy of a quartz watch depends on whether the quartz oscillator can maintain a precise rate of 32,768 oscillations per second.ĭespite the overall regularity of this oscillation, each quartz oscillator has different performance characteristics, with some unable to maintain stable performance during the course of long use and changes in the environment. Chronograph Quartz Green Dial Stainless Steel Mens Watch SSB405P1 Chronograph Quartz Black Dial Black Titanium Mens Watch SSB393 Chronograph Quartz Blue. RAYMOND WEIL TANGO MENS QUARTZ TWO-TONE BRACELET BLUE DIAL WATCH. This is made possible by the selection of highly stable quartz crystals that are put through a rigorous aging process. SEIKO 5 SPORTS AUTOMATIC MADE IN JAPAN BLACK DIAL NYLON STRAP MENS WATCH SNZG15J1.


QUALITY The 3-month aging process for quartz oscillatorsĬaliber 9F delivers an exceptional precision rate of ☑0 seconds per year.
