{"product_id":"seiko-sbgx263-premium-quartz-movement-elegant-stainless-steel-case-sapphire-crystal-water-resistant","title":"SEIKO SBGX263 Premium Quartz Movement Elegant Stainless Steel Case Sapphire Crystal Water Resistant","description":"```html\n\u003ctable style=\"width:100%;border-collapse:collapse;\"\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"font-weight:800;padding:8px;background:#d9d9d9;\"\u003eProduct Highlights\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"padding:8px;\"\u003eGrand Seiko\nManufacture\nGrand Seiko is a true manufacture that handles everything in-house from movement development to design, manufacturing, assembly, adjustment, inspection, and shipping. In an environment where each component can be researched and developed from the material, it merges cutting-edge technology with the highest level of craftsmanship.\nThe Spirit of Takumi\nThe attitude of Grand Seiko's artisans who endlessly pursue the essence of time. This is akin to the concept of \"do\" seen in traditional Japanese martial arts, tea ceremony, and flower arrangement. By honing their skills and deepening their spirituality, this path becomes sharper and opens up new realms. To embody the ever-changing passage of time within a watch, they strive for ultimate precision, visibility, and aesthetic beauty. Creating a true ideal watch that shines eternally across generations. The challenge of the artisans knows no end.\nLight and Shadow\nThe Japanese delicately perceive, savor, and cherish the countless expressions created by light and shadow as time flows. The design is characterized by sharp, distortion-free flat surfaces and straight lines. The mirror finish is meticulously polished by exceptional artisans. The multi-faceted cut indices and thick hands are designed to create beautiful expressions every time the light changes, maintaining high visibility while shining brilliantly.\nGrand Seiko continues to pursue the essence of watches as a companion in life and evolves.\n■ 9F Quartz\n【The ultimate quartz movement equipped with numerous innovations that transcend conventional wisdom in pursuit of the essence of wristwatches】\nAccurately marking time, making it easy to read, and being a lifelong companion. The 9F Quartz is the result of questioning the essence of wristwatches that seems so obvious.\n・Instantly switching instant date calendar\n・A power source to drive thick, bold hands like a mechanical watch\n・Improved accuracy of the second hand indicating the scale correctly\n・High airtight structure to enhance oil retention\nIncorporating numerous innovations that were unthinkable in conventional quartz, the 9F Quartz overturns the previous notion of \"thin and light quartz\" and boasts world-class performance.\n【The birthplace of quartz watches and Spring Drive, Shinshu Time Artisan Workshop】Grand Seiko is a true \"manufacture\" that handles everything in-house from movement design to development, manufacturing, assembly, adjustment, inspection, and shipping, creating watches that merge cutting-edge technology with the highest level of craftsmanship. The \"Shinshu Time Artisan Workshop,\" responsible for Grand Seiko's quartz watches and Spring Drive, is located in Shiojiri, Nagano Prefecture. In just five years since the introduction of Grand Seiko's quartz, it completed the world's highest-level quartz that transcended previous quartz norms while also creating the dream mechanism Spring Drive, developed over more than 20 years, showcasing innovative ideas and manufacturing techniques.\n【Instantly switching \"instant date calendar\"】\nThe 9F Quartz employs an \"instant date cam\" that works in conjunction with the \"date wheel\" and an \"instant date lever\" that operates with its movement. As the \"date wheel\" rotates, it gradually bends the spring of the \"instant date lever\" to store energy, and when the cam reaches a certain position, the spring is instantaneously released, switching the date display instantly. While instant date calendars have been seen in mechanical watches with strong torque, Grand Seiko is the first to implement this in a quartz watch.\nThe task of aligning this switch to midnight is done manually by skilled assembly artisans, ensuring that the calendar does not switch before it points to midnight, set as a standard between midnight and 5 minutes.\n【\"Regulator switch\" for precision adjustment even in quartz】\nMechanical watches have mechanisms for fine-tuning precision, but generally, quartz watches cannot be finely adjusted even when the back cover is opened. However, the 9F Quartz features a \"regulator switch\" that allows for precision adjustments. After using the watch for several years, when tendencies of gaining or losing time become apparent, this switch can correct the precision. By understanding the \"quirks\" of the watch over many years of use and making adjustments to match its individuality, it becomes a watch that can accompany you longer. However, the quartz crystal oscillator used in the 9F Quartz is of the highest quality, having undergone special testing and aging, so the need for the \"regulator switch\" is rare. This is one of Grand Seiko's thoughtful considerations.\n【Thick, heavy hands accurately marking time with \"twin pulse control motor\"】\nIn quartz watches, which generally have weaker torque than mechanical watches, it is not possible to move thick, heavy hands, so typically thin hour and minute hands are used. However, Grand Seiko's quartz models are equipped with thick, bold hands like those found in the first Grand Seiko. To accurately move such hands, the 9F Quartz is equipped with a \"twin pulse control motor\" that can move heavy hands while saving energy. While the second hand of a regular quartz moves in one step per second, the 9F Quartz moves in two steps per second. This is because it efficiently sends two signals per second to achieve high driving power and energy savings to turn thicker hands. By increasing the signals, it increases the axis torque from the rotor, allowing even thick hands to be moved. Of course, this two-step movement is not perceivable to the naked eye and appears as a single step like conventional quartz watches. Furthermore, unlike other quartz watches, it employs ultra-low power temperature compensation. Typically, quartz watches do not have temperature compensation programs for monthly accuracy. Additionally, if a temperature compensation program is included, it requires significant power for control, which shortens battery life. To solve this issue, the 9F Quartz adopts ultra-low power temperature compensation. By driving the unique \"twin pulse control system\" while reducing power consumption of the IC, it achieves about twice the driving power of conventional systems and a longer battery life of about three years compared to typical quartz watches.\n【\"Crystal oscillator\" aged for 3 months】\nThe 9F Quartz achieves high precision within ±10 seconds per year by using only crystal oscillators that have been selected after three months of aging, ensuring stable performance. The crystal oscillator vibrates 32,768 times per second, and the accuracy of quartz watches is determined by whether this frequency can be maintained. There are individual differences in crystal oscillators, and some may fail to maintain stable frequencies due to environmental changes or aging. Additionally, even crystal oscillators that were initially highly accurate may experience frequency changes over the years of use, leading to gains or losses. Focusing on this point, Grand Seiko was the first in the world to adopt an \"aging\" method that ensures the frequency stabilizes before installation. The aging process, which involves applying a constant voltage and artificially providing voltage for selection, lasts for three months. Only crystal oscillators that pass this standard are used in the 9F Quartz.\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\" style=\"font-weight:800;padding:8px;background:#d9d9d9;\"\u003eSpecifications\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #5d5d5d;font-weight:600;padding:6px 10px;width:35%;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #ccc;padding:6px 10px;\"\u003e134g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #5d5d5d;font-weight:600;padding:6px 10px;width:35%;\"\u003eDrive Type\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #ccc;padding:6px 10px;\"\u003eQuartz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #5d5d5d;font-weight:600;padding:6px 10px;width:35%;\"\u003eRadio Automatic Correction Function\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #ccc;padding:6px 10px;\"\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #5d5d5d;font-weight:600;padding:6px 10px;width:35%;\"\u003eDisplay Type\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #ccc;padding:6px 10px;\"\u003eAnalog\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #5d5d5d;font-weight:600;padding:6px 10px;width:35%;\"\u003eCase\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #ccc;padding:6px 10px;\"\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #5d5d5d;font-weight:600;padding:6px 10px;width:35%;\"\u003eGlass\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #ccc;padding:6px 10px;\"\u003eSapphire Glass (Anti-reflective Coating on Inner Surface)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #5d5d5d;font-weight:600;padding:6px 10px;width:35%;\"\u003eBand Material\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #ccc;padding:6px 10px;\"\u003eMetal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #5d5d5d;font-weight:600;padding:6px 10px;width:35%;\"\u003eBand (Adjustable)\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #ccc;padding:6px 10px;\"\u003eScrew Type\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #5d5d5d;font-weight:600;padding:6px 10px;width:35%;\"\u003eAccuracy\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #ccc;padding:6px 10px;\"\u003e±10 seconds per year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #5d5d5d;font-weight:600;padding:6px 10px;width:35%;\"\u003eSpecifications\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #ccc;padding:6px 10px;\"\u003eCase Back: Screw Back with Lion Emblem\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #5d5d5d;font-weight:600;padding:6px 10px;width:35%;\"\u003eColor\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #ccc;padding:6px 10px;\"\u003eDial: Ivory\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border-bottom:1px solid #5d5d5d;font-weight:600;padding:6px 10px;width:35%;\"\u003eList Price\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #ccc;padding:6px 10px;\"\u003e¥363,000 JPY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n```","brand":"SEIKO","offers":[{"title":"Default Title","offer_id":47586196619348,"sku":"SBGX263","price":351913.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0284\/7401\/5828\/files\/SBGX263_2.jpg?v=1787850604","url":"https:\/\/www.ippojapanwatch.com\/ja\/products\/seiko-sbgx263-premium-quartz-movement-elegant-stainless-steel-case-sapphire-crystal-water-resistant","provider":"IPPO JAPAN WATCH ","version":"1.0","type":"link"}