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. 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. 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. 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. This is made possible by the selection of highly stable quartz crystals that are put through a rigorous aging process. rotating compass bezel, - designer stainless steel band, precision VD55 l quartz movement made by Seiko. A blue dial chronograph timepiece from Alba. Seiko Spirit Selection Quartz Chronograph Tachymeter JDM Green Dial Leather StrapSBTR 017SBTR017 Specifications:MovementQuartz Power Caliber: 8T63 Accuracy. QUALITY The 3-month aging process for quartz oscillatorsĬaliber 9F delivers an exceptional precision rate of ☑0 seconds per year. Powered by Seiko Watch Corporation, Japan, incredible performance is the Alba DNA. SSB399P1 Seiko Quartz Mens Black Stainless Steel Chronograph Sports Watch SSB399P1 Watch features: Quartz Movement Black Stainless Steel Case.
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