{"product_id":"seiko-sbgr261-mechanical-watch-automatic-movement-stainless-steel-case-sapphire-crystal-water-resistant-100m","title":"SEIKO SBGR261 Mechanical Watch Automatic Movement Stainless Steel Case Sapphire Crystal Water Resistant 100m","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;\"\u003eA sophisticated mechanical automatic watch that elegantly wears a classic style for adults. \nThe model that once featured the Caliber 9S67 is now available with the Caliber 9S65, which does not have a power reserve indicator, while maintaining its classic style. \nIt lasts approximately 3 days at maximum winding, and by adopting the latest hairspring and MEMS (Micro-Electro-Mechanical Systems) technology for the escapement (anchor, gear), the stability of accuracy during actual use has improved. \nThe box-shaped sapphire glass that revives the traditional classical form, the gently flowing lugs with delicate Zaratsu polishing, and the richly textured ivory-colored dial with a blue steel second hand all come together in an elegant classic style. \nThis watch, while making a statement, enhances the wearer's individuality, and as it is used more, it deepens affection, bringing out the adult charm appropriate for each age. \nGrand Seiko \nManufacture \nGrand Seiko is a true manufacture that handles everything from movement development, design, manufacturing, assembly, adjustment, inspection, to shipping in-house. In an environment where each part can be researched and developed from materials, cutting-edge technology is fused with the highest level of craftsmanship. The \"Grand Seiko Studio Shizukuishi,\" overlooking the majestic Iwate Mountain. The \"Shinshu Time Artisan Workshop,\" surrounded by the mountains and lakes of Shinshu. In these two workshops nurtured by rich nature, three movements are created. \nThe Spirit of Takumi \nThe attitude of Grand Seiko's artisans who endlessly pursue the essence of time. This is akin to the way 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 time within the watch, they strive for high precision, visibility, and the beauty of form. Creating a true ideal watch that shines eternally across generations. The challenge of the artisans knows no end. \nLight and Shadow \nJapanese people delicately perceive, savor, and cherish the countless expressions created by light and shadow as time flows. The design is based on sharp, flat surfaces and straight lines without distortion. The mirror surface is meticulously polished with exceptional craftsmanship. The multi-faceted cut indices and thick hands. The symbolic designs create beautiful expressions every time the light changes due to time or place, shining brilliantly while maintaining high visibility. \nSpecifications \nExterior: Stainless Steel, Case Back: Stainless Steel and Sapphire Glass \nCase Back Specification: See-through Back with 6-screw Fixed Case Back \nGlass Material: Box-shaped Sapphire \nCoating: Anti-reflective Coating on Inner Surface \nCase Size: Width 39.5mm, Length 46.9mm, Thickness 13.1mm \nBand Width: 19mm \nBand Material: Crocodile \nClasp: One-push Three-fold Type \nWrist Size (Maximum): 187mm \nGrand Seiko continues to evolve in pursuit of the essence of watches as a timepiece to walk through life with. \n【The Holy Land of Mechanical Watches: Shizukuishi High-end Watch Workshop】 \nThe \"Shizukuishi High-end Watch Workshop,\" which is responsible for Grand Seiko's mechanical watches, is located in Shizukuishi Town, Iwate Prefecture. It is a manufacture that consistently handles everything from the design and manufacturing of parts such as hairsprings and gears, which govern the heart of mechanical watches, to assembly, adjustment, inspection, and shipping. Many skilled craftsmen, including those who have received the \"Modern Master\" and \"Yellow Ribbon Medal,\" as well as those who have achieved excellent results in watch skill competitions, are present, and their exceptional craftsmanship produces the world's highest quality mechanical watches. Grand Seiko's mechanical watches, composed of about 200 parts, have the precision of each part greatly affecting the accuracy of the finished product. The coexistence of high-precision parts manufacturing technology and the artisan skill of assembling while adjusting to 1\/100mm units creates an environment that has given birth to numerous legendary timepieces in watch history. \nMechanical watches, which use a mainspring as a power source and indicate the time through the movement of hands, have inherited this driving method unchanged since their inception. This driving system utilizes the force of the unwinding mainspring to rotate gears at a constant speed, and the escapement mechanism, composed of the \"balance,\" \"anchor,\" and \"gear,\" adjusts the accuracy. The \"anchor,\" which controls the rotation of the \"gear\" at a constant rhythm, operates based on the regular vibrations of the \"balance.\" The \"balance\" repeats a regular back-and-forth motion like a pendulum, controlling the speed at which the mainspring unwinds to be constant (i.e., regulating) and allowing it to unwind over a long period. This constant motion is transmitted to the hour, minute, and second hands, displaying the time. \n◆ The Pillar Supporting Accuracy: \"Balance Wheel\" \nThe \"balance wheel,\" which is the wheel part of the balance, adjusts and controls the repetitive motion of the anchor, maintaining the vibration at a constant speed. It is one of the important parts that greatly influences the accuracy of the watch, with weight adjustments made in units of 0.000001g to stabilize the rotation. Because it is an extremely delicate part, slight temperature changes can cause contraction or expansion, leading to deformation. Therefore, in the 9S mechanical, the number of support pillars, which is usually 2 to 3, has been increased to 4 to provide solid support and minimize the impact of temperature differences on the shape of the balance wheel and, consequently, on accuracy. They are aware that the effort to create parts significantly increases, but they are committed to devising ways to prevent deformation. \n◆ High Accuracy Standards Exceeding Chronometer \nThe first Grand Seiko, born in 1960, had the word \"Chronometer\" engraved on the dial as proof of passing the Swiss chronometer standard. However, you cannot find the word \"Chronometer\" on today's Grand Seiko. The reason lies in the \"New GS Standard.\" Established in 1998, this standard has higher accuracy criteria than the Swiss chronometer standard. There exists a \"Grand Seiko Special (GSS) Standard\" that exceeds the \"New GS Standard\" in the 9S mechanical. This accuracy standard can only be reached by skilled watchmakers who spend many times more time than usual on mechanical watches, allowing only a very limited number to be produced each year. The special heart, with an average daily difference of +4 seconds to -2 seconds, is indicated by the word \"SPECIAL\" on the dial. \n◆ 17-Day Certification Test \nThe 9S mechanical must undergo a unique certification test based on strict standards lasting 17 days. Under various conditions set at three temperature levels and six directional differences, it cannot bear the Grand Seiko crown unless the time advance or delay (daily difference) falls within the standard values.\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;\"\u003e84g\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;\"\u003eMechanical (Automatic with Manual Winding)\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 Wave 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;\"\u003eBox-shaped Sapphire Glass (Anti-reflective Coating)\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;\"\u003eCrocodile\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;\"\u003eStatic Accuracy: Average Daily Difference: +5 seconds to -3 seconds\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%;\"\u003eSpecification 1\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #ccc;padding:6px 10px;\"\u003ePower Reserve: Approximately 72 hours (about 3 days) at maximum winding\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%;\"\u003eSpecification 2\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #ccc;padding:6px 10px;\"\u003eNumber of Jewels: 35 jewels\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%;\"\u003eSpecification 3\u003c\/td\u003e\n\u003ctd style=\"border-bottom:1px solid #ccc;padding:6px 10px;\"\u003eWater Resistance for Daily Life\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¥638,000 JPY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n```","brand":"SEIKO","offers":[{"title":"Default Title","offer_id":47586197241940,"sku":"SBGR261","price":510018.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0284\/7401\/5828\/files\/SBGR261_4.jpg?v=1787850645","url":"https:\/\/www.ippojapanwatch.com\/products\/seiko-sbgr261-mechanical-watch-automatic-movement-stainless-steel-case-sapphire-crystal-water-resistant-100m","provider":"IPPO JAPAN WATCH ","version":"1.0","type":"link"}